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Author/Creator
- California. Division of Mines and Geology[remove]8
- Geological Survey (U.S.)8
- Lopez, David A.5
- Grose, L. Trowbridge (Lucius Trowbridge), 1924-3
- Hills, Francis Allan3
- Jenness, Jane E.2
- Chappell, Richard1
- Johnson, William D.1
- Roggensack, Kurt1
- Thompson, Thomas H.1