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Author/Creator
- Geological Survey (U.S.)22
- Ratcliffe, Nicholas M. (Nicholas Morley), 1938-4
- Baskerville, Charles A.2
- Billingsley, George H.2
- Day, Warren C.2
- Hualapai Indian Tribe of the Hualapai Indian Reservation, Arizona2
- Massachusetts. Department of Public Works2
- New Jersey Geological Survey2
- United States. Bureau of Indian Affairs2
- Armstrong, Thomas R.1
- Bailey, Scott, 1948-1
- Barton, Christopher Cramer1
- Bybell, Laurel M.1
- Camerlo, Rion H.1
- Cannon, William F.1
- Carr, Michael D.1
- Dennen, William H.1
- Drake, Avery Ala, 1927-1
- Earhart, Robert L.1
- Edgar, N. Terence1