Author/Creator
- United States. Congress. House1,068
- Geological Survey (U.S.), issuing body880
- United States569
- United States. Geological Survey397
- SpringerLink (Online service)245
- United States. Congress. Senate244
- Geological Survey (U.S.)208
- United States. Department of the Interior154
- United States. War Department127
- United States. Congress. House. Committee on Mines and Mining. (1865-1946)88
- United States. Department of the Interior. Bureau of Mines (1934- )87
- United States. War Department. Engineer Dept86
- United States. Congress. House. Committee on Public Lands. (1805-1951)84
- United States. Army. Corps of Engineers80
- United States. Department of the Treasury75
- United States. Department of State73
- International Bureau of the American Republics56
- United States. Congress. Senate. Committee on Interior and Insular Affairs. (1948-1977)56
- Library of Congress. Congressional Research Service52
- United States. Department of Commerce and Labor. Bureau of Manufactures50