@book{6456,
	author = {Pozas, Ricardo. and Pozas, Isabel H. de,},
	title = {Los indios en las clases sociales de México /},
	publisher = {Siglo Veintiuno,},
	year = {1980.},
	series = {Antropología},
	address = {La Habana :},
	edition = {11a ed.}
}