Hernández Xolocotzi, Efraím. Introduction of plants and germplasm of Phaseolus vulgaris and other edible legumes. - [Chapingo, Méx.] : [s.e.], [1973?]. - 6 p. 28-22 LCCN: 66412 Subjects--Topical Terms: Frijol--Genética.Germoplasma.