Soil survey manual (Transfered to CPRS Modipuram)
Soil Survey Staff Bureau of Plant Industry and Agricultural Engineering
Soil survey manual (Transfered to CPRS Modipuram) USDA - Washington United States Department of Agriculture 1951 - vii, 503 p.; 23cm.
631.47 US3S
Soil survey manual (Transfered to CPRS Modipuram) USDA - Washington United States Department of Agriculture 1951 - vii, 503 p.; 23cm.
631.47 US3S