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Author/Creator
- Geological Survey (U.S.)7
- Ratcliffe, Nicholas M. (Nicholas Morley), 1938-3
- Baskerville, Charles A.2
- Massachusetts. Department of Public Works2
- Day, Warren C.1
- Dennen, William H.1
- Potter, Donald B., 1923-1
- Stanley, Rolfe S.1
- United States. Department of Energy. Nevada Operations Office1
- Vermont Geological Survey1