00561cam a22001937a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093110004100102245004900143260006200192300001000254500001400264650004500278650004400323CHAP20220329141408.0971013s1970 r 00010 d a67468 a68440 a77912 cCHAP aE.U.A. National Agricultural Library 0aLockheed retrieval services file description aBeltsville, MD :bNational Agricultural Library,c[1970?] a42 p. aFotocopia14aAgriculturaxServicios de información.14aAgriculturaxSistemas de información.