00594cam a2200205 a 4500 DLC 630 s 630 AGR 1986 A049 Or. Research for tomorrow. [Washington, D.C.? : U.S. Dept. of Agriculture : Supt. of Docs., U.S. G.P.O., distributor], 1986. vii, 336 p. : ill. ; 23 cm. Cover title. Shipping list no.: 86-919-P. Includes index. S/N 001-000-04472-9 Item 17 Agriculture Agriculture United States. EK 13918 13918