@book{36522,
	author = {Álvarez, Luis Alberto,  and Arrubla, Mario },
	title = {Colombia hoy : },
	publisher = {Siglo XXI },
	year = {1991},
	address = {Bogotá D.C.},
	edition = {14a ed. },
	url = {http://babel.banrepcultural.org/cdm/singleitem/collection/p17054coll9/id/5}
}