@book{68999,
	author = {Congreso Nacional de Horticultura ( and Colegio de Postgraduados. Chapingo, Méx.},
	title = {Programa y memoria de resúmenes},
	publisher = {La Universidad,},
	year = {1989},
	address = {Chapingo, Méx. :},
	note = {32-150}
}