Author/Creator
- United States1,015
- Minnesota448
- Geological Survey (U.S.)442
- United States. Congress. House368
- Project Muse219
- United States. Bureau of the Census182
- United States. Congress. Senate179
- Geological Survey (U.S.), issuing body161
- University of Minnesota. College of Education. Bureau of Field Studies and Surveys136
- North Central Forest Experiment Station (Saint Paul, Minn.)129
- ebrary, Inc128
- Minnesota Historical Society127
- United States. Army. Corps of Engineers126
- United States. Congress. House. Committee on Indian Affairs. (1822-1946)124
- United States. Congress. Senate. Committee on Indian Affairs. (1820-1946)108
- United States. War Department104
- United States. Department of the Interior103
- United States. Congress. House. Committee on Interstate and Foreign Commerce. (1892- 1981)98
- United States. Congress. House. Committee on Public Lands. (1805-1951)97
- United States. Congress. Senate. Committee on Commerce. (1825-1946)88