@book{98448,
	author = {Ayala Ortiz, Dante Ariel and Gómez Cruz, Manuel Ángel},
	title = {Nuevo instrumento de política agrícola para México :},
	publisher = {UACH. CIESTAAN,},
	year = {2008},
	series = {Reporte de investigación},
	address = {Chapingo, Méx. :}
}