@book{2741,
	author = {Castellanos Sánchez, Alejandro. and Castillo Aguilar, José Javier.},
	title = {Defoliación en sorgo (Sorghum bicolor L. Moench) tolerante al frío en Chapingo, México},
	publisher = {El autor,},
	year = {1983},
	address = {Chapingo, Méx. :},
	note = {47-33}
}