United States Bureau of Plant Industry, Soils, and Agricultural Engineering. text bibliography dcu Washington, D.C Agricultural Research Administration, U.S. Dept. of Agriculture 1966 monographic eng

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vii, 503 p. [16] pages of plates : ill., charts, maps ; 24 cm. by Soil Survey Staff, Bureau of Plant Industry, Soils and Agricultural Engineering. "Revision and enlargement of U.S. Department of Agriculture Miscellaneous publication 274, the Soil survey manual, issued September 1937, and supersedes it." Includes index. Bibliography": p. 443-457. Soil surveys 631.4 SOI 1966 U.S. Nat'l Agr. Libr. 140208 20211208235709.0 14805 eng