@book{69650,
	author = {Aguilar Avila, Jorge. and Rosa Tapia, Liberto de la.},
	title = {Análisis de la comercialización de ganado en el mercado de Tepeaca, Puebla},
	publisher = {El autor,},
	year = {1992},
	address = {Chapingo, Méx. :},
	note = {61-228}
}