@book{24743,
	author = {Billington, Ray Ellen. and Blaine Hedges, James.},
	title = {La expansión hacia el oeste :},
	publisher = {Bibliográfica Omeba,},
	year = {1967.},
	series = {América en Letras},
	address = {Buenos Aires :},
	edition = {3a ed.},
	note = {Incluye índice.}
}