@book{12713,
	author = {Bolívar, Rubén Darío and Gómez, Miguel Angel, autor.},
	title = {Investiguemos :},
	publisher = {Voluntad S.A.,},
	year = {1987.},
	series = {Investiguemos.},
	address = {Bogotá :},
	edition = {Primera edición.},
	note = {Incluye índice.}
}