@book{2648,
	author = {Kraemer Bayer, Gabriela. and Solórzano Toscano, Luis Alberto.},
	title = {Los productores de café en Zihuateutla, Pue.},
	publisher = {UACH,},
	year = {1990},
	series = {Cuadernos universitarios: Ciencias Sociales},
	address = {Chapingo, Méx. :}
}