GUZMAN MEDRANO, EDGAR EDMUNDO GENETICA AGROPECUARIA - 0 - MEXICO TRILLAS S.A. 1996 - 150 pag 32 cm - 0 0 . AGRICULTURA-INVESTIGACION ISBN: 986-24-5462-X Subjects--Topical Terms: 3CIENCIAS PURA Dewey Class. No.: 575.1 / G98