@book{3000,
	author = {Sorre, Maximilien, 1880-1962 and  Filatti, Rosa},
	title = {México, América central},
	publisher = {Montaner y Simón},
	year = {1948},
	series = {Geografía universal},
	address = {Barcelona},
	edition = {2 ed.},
	note = {Incluye ap. estadístico e índices}
}