@book{2210,
	author = {Martínez Acosta, María Josefina.},
	title = {Canales y márgenes de comercialización de leche en Rincón de Tamayo, Gto.},
	publisher = {El Autor,},
	year = {1991},
	address = {Chapingo, Méx. :},
	note = {D44-245}
}