00683cam a22002297a 4500003000500000005001700005008004100022010000900063011000900072035000900081040000900090082001900099110003400118245006300152260005700215300001700272650002400289650002400313650003900337650003700376650004000413CHAP20220329133337.0971013s1991            r     00010     d  a5191  a6163  a5383  cCHAP  a630.5bY4 1991  aYearbook of Agriculture. 1991 0aAgriculture and the environmentcDepartment of Agriculture  aWashington, D.C. :bDepartment of Agriculturec1991.  a325 p. ilus.14aAgriculturaxE.U.A.14aAgriculturaxE.U.A.14aAgriculturaxInvestigacionzE.U.A.14aMedio ambientexInvestigación.14aPlantasxEfecto del medio ambiente.