@book{95989,
	author = {Maldonado Martínez, Apolo.},
	title = {Historia y manejo del maguey pulquero (Agave atrovirens Karw.), en Calpulalpan, Tlaxcala},
	publisher = {El autor,},
	year = {2008},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/107618.pdf}
}