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Author/Creator
- Geological Survey (U.S.)169
- Nickles, John M. (John Milton), 1859-194518
- Weeks, Fred Boughton, 1864-13
- Rhode Island Development Council10
- Centre national de la recherche scientifique (France). Centre de documentation9
- Quinn, Alonzo W. (Alonzo Wallace), 1899-19777
- Walsh, Gregory J.7
- Drake, Avery Ala, 1927-6
- Thom, Emma Mertins6
- Illinois State Geological Survey5
- Massachusetts. Department of Public Works5
- Massachusetts. Geological Survey5
- New Jersey Geological Survey5
- United States. Agency for International Development5
- Chronic, John4
- Florida Geological Survey4
- Moore, George E.4
- Mullens, Marjorie C.4
- Nuccio, Vito F.4
- White, Walter S. (Walter Stanley), 1915-4