Books by John S. Cole
Subsoil moisture under semiari
Subsoil moisture under semiarid conditions
Correlations between annual pr
Correlations between annual precipitation and the yield of spring wheat in the Great Plains
Work of the United States Dry-
Work of the United States Dry-Land Field Station, Ardmore, S. Dakota, 1912 to 1925
Growing winter wheat on the Gr
Growing winter wheat on the Great Plains