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- U.S. Department of the Interior, U.S. Geological Survey6
- U.S. Department of the Interior, U.S. Geological Survey,for sale by U.S. Geological Survey2
- Geologian tutkimuskeskus1
- Geological Society of America1
- Geological and Geophysical Institute of Hungary1
- Magyar Állami Földtani Intézet = Geological and Geophysical Institute of Hungary1
- Montana Bureau of Mines and Geology,Standard Print1
- South Dakota Geological Survey1
- The Geological Society of America1
- U.S. Geological Survey1
