@book{55241,
	author = {Demangeon, Albert. and Terán, Rocío.},
	title = {Problemas de geografía humana / },
	editor = {Agustín Núñez)},
	publisher = {Omega, },
	year = {[1956] (},
	series = {Colección de geografía},
	address = {Barcelona : }
}