@book{3797,
	author = {Ribeiro, Darcy and Pi Ugarte, Renzo},
	title = {Las américas y la civilización},
	publisher = {Centro Editor de América Latina},
	year = {1969},
	series = {Cuadernos latinoamericanos},
	address = {Buenos Aires},
	note = {Contiene referencias bibliográficas en p. 254}
}