//-->
1990 census of population
(1994)
Report of the Task Force on Indian Economic Development
(1986)
Agriculture, Indians, and American history
Wessel, Thomas R., (1976)
Agriculture in the Great Plains, 1876-1936 : a symposium ; sponsored by Agricultural History Society, U. S. Department of Agriculture, Montana Bicentennial Administration, Montana State University
Wessel, Thomas R., (1977)