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-88%
Two Hundred Miles on the Delaware River: A Canoe Cruise From its Headwaters to the Falls at Trenton; With an Historical Appendix
0Original price was: $75.00.$9.00Current price is: $9.00.Two Hundred Miles on the Delaware River: A Canoe Cruise From its Headwaters to the Falls at Trenton; With an Historical Appendix, Geological Survey, 9781016171618
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-87%
Two Hundred Miles on the Delaware River: A Canoe Cruise From its Headwaters to the Falls at Trenton; With an Historical Appendix
0Original price was: $61.00.$8.00Current price is: $8.00.Two Hundred Miles on the Delaware River: A Canoe Cruise From its Headwaters to the Falls at Trenton; With an Historical Appendix, Geological Survey, 9781016176354
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-67%
U.S. Geological Survey Professional Paper, Issues 72-73
0Original price was: $55.00.$18.00Current price is: $18.00.U.S. Geological Survey Professional Paper, Issues 72-73, Geological Survey, 9781021114433
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-79%
U.S. Geological Survey Professional Paper, Issues 72-73
0Original price was: $38.00.$8.00Current price is: $8.00.U.S. Geological Survey Professional Paper, Issues 72-73, Geological Survey, 9781022700055
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-77%
Ueber Synchronismus Und Antagonismus Von Vulkanischen Eruptionen Und Die Beziehungen Derselben Zu Den Sonnenflecken Und Erdmagnetischen Variationen
0Original price was: $74.00.$17.00Current price is: $17.00.Ueber Synchronismus Und Antagonismus Von Vulkanischen Eruptionen Und Die Beziehungen Derselben Zu Den Sonnenflecken Und Erdmagnetischen Variationen, Geological Survey, 9781020269639
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-65%
University of California Publications. Bulletin of the Department of Geological Sciences; Volume 13
0Original price was: $52.00.$18.00Current price is: $18.00.University of California Publications. Bulletin of the Department of Geological Sciences; Volume 13, Geological Survey, 9781021075598
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-90%
University of California Publications. Bulletin of the Department of Geological Sciences; Volume 13
0Original price was: $93.00.$9.00Current price is: $9.00.University of California Publications. Bulletin of the Department of Geological Sciences; Volume 13, Geological Survey, 9781022665279
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-85%
Untersuchungen ber Dmmerungserscheinungen: Zur Erklrung Der Nach Dem Krakatau-Ausbruch Beobachteten Atmosphrisch-Optischen Strung
0Original price was: $67.00.$10.00Current price is: $10.00.Untersuchungen ber Dmmerungserscheinungen: Zur Erklrung Der Nach Dem Krakatau-Ausbruch Beobachteten Atmosphrisch-Optischen Strung, Geological Survey, 9781020282614
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-76%
Untersuchungen ber Erzgnge; Volume 2
0Original price was: $70.00.$17.00Current price is: $17.00.Untersuchungen ber Erzgnge; Volume 2, Geological Survey, 9781020270215
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-84%
Untersuchungen ber Erzgnge; Volume 2
0Original price was: $82.00.$13.00Current price is: $13.00.Untersuchungen ber Erzgnge; Volume 2, Geological Survey, 9781021629111
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-86%
Urban Geology, Master Plan for California; the Nature, Magnitude, and Costs of Geologic Hazards in California and Recommendations for Their Mitigation: No.198
0Original price was: $72.00.$10.00Current price is: $10.00.Urban Geology, Master Plan for California; the Nature, Magnitude, and Costs of Geologic Hazards in California and Recommendations for Their Mitigation: No.198, Geological Survey, 9781020798375
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-90%
Urban Geology, Master Plan for California; the Nature, Magnitude, and Costs of Geologic Hazards in California and Recommendations for Their Mitigation: No.198
0Original price was: $109.00.$11.00Current price is: $11.00.Urban Geology, Master Plan for California; the Nature, Magnitude, and Costs of Geologic Hazards in California and Recommendations for Their Mitigation: No.198, Geological Survey, 9781022226043
