@book{94637,
	author = {González Fierro, Paulina H.},
	title = {Germinación y desarrollo fenológico de nochebuena silvestre (Euphorbia pulcherrima Wulld. ex. Klotzsch)},
	publisher = {El autor,},
	year = {2007},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/106236.pdf}
}