Classification of Ohio soils
Conrey, G.W.
Classification of Ohio soils - Wooster 1925 - 161-191 p. - Classification, Soils Ohio Agricultural Experiment Station. Vol. 6 No. 7-8 Whole No. 117 .
Classification of Ohio soils - Wooster 1925 - 161-191 p. - Classification, Soils Ohio Agricultural Experiment Station. Vol. 6 No. 7-8 Whole No. 117 .