@book{93212,
	author = {Cruz Sánchez, Gerardo.},
	title = {Producción de alfalfa hidropónica en invernadero /},
	publisher = {El autor,},
	year = {2006.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/104768.pdf}
}