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Author/Creator
- United States. Central Intelligence Agency24
- Environmental Systems Research Institute (Redlands, Calif.)2
- Geological Survey (U.S.)2
- Walcott, Charles D. (Charles Doolittle), 1850-19272
- American Association of Petroleum Geologists1
- Australia. Dept. of the Interior. Property and Survey Branch1
- Briere, Peter R.1
- Burtis, V. M.1
- European Commission1
- European Union MAST Programme1
- Fisher, Donald W.1
- Gaussen, Henri, 1891-1
- Geological Survey (U.S.) Annual report1
- Geological Survey (U.S.). Annual report1
- Geometronics Service Center (U.S.)1
- Hill, Robert Thomas, 1858-19411
- Indian Council of Agricultural Research1
- International Statistical Programs Center (U.S.)1
- Isachsen, Yngvar W., 1920-1
- Italy. Marina. Stato maggiore. Ufficio storico1