@book{94772,
	author = {Lucas Santoyo, Luis Gustavo},
	title = {Análisis histológico del proceso de floración en nochebuena (Euphorbia pulcherima Willd)},
	publisher = {El autor,},
	year = {2007},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/106374.pdf}
}