@book{68485,
	author = {Simposio Nacional sobe Uso y Manejo de Tepetates para el Desarrollo Rural ( and Ruíz Figueroa, José Feliciano.},
	title = {[Memorias]},
	publisher = {UACH. Departamento de Suelos,},
	year = {1987},
	address = {Chapingo, Méx. :},
	note = {29-122}
}