TY - BOOK AU - Bosworth,Duane A. AU - Foster,Albert B. TI - Approved practices in soil conservation U1 - 631.4 PY - 1982/// CY - Danville, Ill. PB - Interstate Printers & Publishers KW - Soil conservation N1 - Rev. ed. of: Approved practices in soil conservation / by Albert B. Foster. 4th ed. 1973; Includes index ER -