@book{3433,
	author = {Rios, Ligia. and Rios, Ligia},
	title = {Area metropolitana de Bucaramanga :realidades y contrastes /Rios Ligia.},
	publisher = {Funprocep, },
	year = {1994.},
	address = {Bucaramanga :},
	edition = {Primera edición.}
}