@book{4481,
	author = {Zepeda del Valle, Juan Manuel.},
	title = {Estudio de posibilidades del Centro de Recría "Guillermo Aguilera Cabrera"},
	publisher = {UACH. Centro Regional Universitario Centro-Norte,},
	year = {1991},
	address = {Zacatecas, Zac. :},
	note = {1992-328}
}