@book{91740,
	author = {Trinidad Esteban, Mario},
	title = {Manejo y reciclado de bulbos en lilium (Lilium sp.) /},
	publisher = {El autor,},
	year = {2005.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/103277.pdf}
}