McClintock, Barbara. Chromosome constitution or races of maize : : its significance in the interpretation of relationships between races and varieties in the Americas. - Chapingo, Méx. : Colegio de Postgraduados, 1981. - 517 p. : : ilus. LCCN: 27880 Subjects--Topical Terms: Maíz--América.Maíz--Genética.Maíz--Variedades. Dewey Class. No.: 633.15 / M2