Professional paper - United States Geological Survey Volume 46 by Geological Survey, 1130864812, 9781130864816
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Professional paper - United States Geological Survey Volume 4-6 by Geological Survey, 1130809005, 9781130809008
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Professional paper - United States Geological Survey Volume 47 by Geological Survey, 1130920666, 9781130920666
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Professional paper - United States Geological Survey Volume 48, pt. 1 by Geological Survey, 1130874656, 9781130874655
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Professional paper - United States Geological Survey Volume 49-50 by Geological Survey, 1130834352, 9781130834352
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Professional paper - United States Geological Survey Volume 52-53 by Geological Survey, 1130256472, 9781130256475
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Professional paper - United States Geological Survey Volume 55 by Geological Survey, 123615410X, 9781236154101
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Professional paper - United States Geological Survey Volume 56 by Geological Survey, 1130380246, 9781130380248
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Professional paper - United States Geological Survey Volume 57 by Geological Survey, 1130939111, 9781130939118
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Professional paper - United States Geological Survey Volume 59 by Geological Survey, 1130379256, 9781130379259
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Professional Paper - United States Geological Survey Volume 61-62 by Geological Survey, 1234043920, 9781234043926
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Professional Paper - United States Geological Survey Volume 65 by Geological Survey, 1234050889, 9781234050887
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Professional paper - United States Geological Survey Volume 66-67 by Geological Survey, 1130406938, 9781130406931
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Professional paper - United States Geological Survey Volume 69 by Geological Survey, 113090394X, 9781130903942
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Professional paper - United States Geological Survey Volume 69-70 by Geological Survey, 1130306844, 9781130306842
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Professional paper - United States Geological Survey Volume 73 by Geological Survey, 113070887X, 9781130708875
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Professional paper - United States Geological Survey Volume 76 by Geological Survey, 1130529754, 9781130529753
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Professional paper - United States Geological Survey Volume 7-8 by Geological Survey, 1231876867, 9781231876862
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Professional paper - United States Geological Survey Volume 8 by Geological Survey, 1458957578, 9781458957573
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Professional paper - United States Geological Survey Volume 83 by Geological Survey, 1130514277, 9781130514278
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Professional paper - United States Geological Survey Volume 87-88 by Geological Survey, 1130871940, 9781130871944
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Professional paper - United States Geological Survey Volume 89 by Geological Survey, 1130769887, 9781130769883
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Professional paper - United States Geological Survey Volume 91 by Geological Survey, 1130385272, 9781130385274
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Professional paper - United States Geological Survey Volume 94 by Geological Survey, 1130996867, 9781130996869
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Professional paper - United States Geological Survey Volume 98 by Geological Survey, 1130907090, 9781130907094
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Professional Paper - United States Geological Survey, Issue 100 , 1146406169, 9781146406161
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Professional Paper - United States Geological Survey, Issue 105 , 1148349960, 9781148349961
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Professional Paper - United States Geological Survey, Issue 107 , 1142400492, 9781142400491
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Professional Paper - United States Geological Survey, Issue 108 , 1146472188, 9781146472180
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Professional Paper - United States Geological Survey, Issue 116 , 1141823772, 9781141823772
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Professional Paper - United States Geological Survey, Issue 116 , 1146102488, 9781146102483
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Professional Paper - United States Geological Survey, Issue 12 , 1144366151, 9781144366153
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Professional Paper - United States Geological Survey, Issue 12 , 1141545934, 9781141545933
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Professional Paper - United States Geological Survey, Issue 13 , 1147855048, 9781147855043
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Professional Paper - United States Geological Survey, Issue 13 , 1146269854, 9781146269858
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Professional Paper - United States Geological Survey, Issue 14 , 1147848882, 9781147848885
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Professional Paper - United States Geological Survey, Issue 15 , 1141342189, 9781141342181
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Professional Paper - United States Geological Survey, Issue 17 , 1141781727, 9781141781720
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Professional Paper - United States Geological Survey, Issue 21 , 1147715491, 9781147715491
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Professional Paper - United States Geological Survey, Issue 21 , 1147655294, 9781147655292
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Professional Paper - United States Geological Survey, Issue 25 , 1141327929, 9781141327928
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Professional Paper - United States Geological Survey, Issue 26 , 1145378110, 9781145378117
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Professional Paper - United States Geological Survey, Issue 27 , 1141799537, 9781141799534
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Professional Paper - United States Geological Survey, Issue 3 , 1141296810, 9781141296811
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Professional Paper - United States Geological Survey, Issue 37 , 114671887X, 9781146718875
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Professional Paper - United States Geological Survey, Issue 38 , 1142967514, 9781142967512
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Professional Paper - United States Geological Survey, Issue 38 , 1141992930, 9781141992935
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Professional Paper - United States Geological Survey, Issue 41 , 1144463904, 9781144463906
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Professional Paper - United States Geological Survey, Issue 42 , 1147567646, 9781147567649
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Professional Paper - United States Geological Survey, Issue 43 , 1143143183, 9781143143182
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