Investigations in erosion control and the reclamation of eroded land at the Upper Mississippi Valley Conservation Experiment Station near La Crosse, Wis. 1933-43
Hays, Orville Elton.
McCall, Arthur Gillett.
Bell, Forest G.
Washington U.S. Department of Agriculture
1949
With folded maps and plans in a pocket at the end
Soil conservation
Soil erosion
Reclamation of land