00757cam a22002177a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093100003100102245008900133260006200222300001000284490008500294650002400379650002600403650002500429830008500454CHAP20220817042839.0971013s1975            r     00010     d  a57544  a58516  a62671  cCHAP00aSprague, George Frederick.14aThe development of hybrid corn technolgy in the United States and selected countries  aWashington :bAgency for International Development,c1975  a81 p. 0aAgriculture technology for developing countries. Technical series bulletinv; 1614aMaízxHíbridos.14aMaízxMejoramiento.14aMaízxProteínas.0 aAgriculture technology for developing countries. Technical series bulletinv; 16