@book{131638,
	author = {Navarro Alcalá-Zamora, Pío J.},
	title = {Sociedades, pueblos y culturas /},
	publisher = {Aula Abierta Salvat,},
	year = {c1981.},
	series = {Coleccion Salvat temas clave},
	address = {Barcelona :}
}