@book{63014,
	author = {Sánchez Vélez, Alejandro S. and Medina Niño, Nicandro. and UACH.},
	title = {La problemática del agua en Chapingo},
	publisher = {UACH,},
	year = {1990},
	series = {Nuestro entorno universitario},
	address = {Chapingo, Méx. :}
}