Author
Colorado Agricultural Experiment Station
Sandsten, E. P. 1868-
9
Tompkins, C. M. 1896-1983
8
Burdick, R. T. 1889-1982
1
Colorado Agricultural College. Department of Economics and Sociology
1
Limbocker, T. F.
1
McGinty, R. A. 1886-
1
United States. Bureau of Agricultural Economics. Division of Farm Management and Cost of Production
1
United States. Department of Agriculture
1
Whitney, Ramey C.
1