Crop management and soil conservation Soil conservation Cox, Joseph Frank 1890- creator Jackson, Lyman Edson 1897- joint author. text xx New York J. Wiley c1948 1948 2d ed. monographic eng
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xxii, 572 p. : ill., maps. ; 21 cm. by Joseph F. Cox and Lyman E. Jackson. "References" at end of each chapter. Agriculture United States Soils Farm management United States Soil conservation United States SB93 .C8 1948 631.5 COC Wiley farm series agr48000521 DLC 750827 20150108183505.0 7882641