Abbott, A. J. Improving vegetatively propagated crops - London : Academic Press, 1987 - 416 p. : ilus. - Applied botany and crop sceince . - Applied botany and crop sceince . LCCN: 1767 Subjects--Topical Terms: Cultivos--Mejoramiento.Propagación de plantas. Dewey Class. No.: 631.53 / A2