@book{908,
	author = {Bojorges Sosa, José Ambrosio.},
	title = {Indice de sitio para oyamel (Abies religiosa (H.B.K.) Schl ext. Cham.) en Zoquiapan, México},
	publisher = {El autor,},
	year = {1990},
	address = {Chapingo, Méx. :},
	note = {39-143}
}