@book{51343,
	author = {Armillas, Pedro.},
	title = {Programa de historia de la América indígena.},
	publisher = {Oficina de Ciencias Sociales, Departamento de Asuntos Culturales, Unión Panamericana,},
	year = {1957-58.},
	series = {[Pan American Union. Social Science Section] Estudios monográficos,},
	address = {Wáshington,}
}