@book{18015,
	author = {Instituto Geográfico Agustín Codazzi},
	title = {El Uso de Mapas y Fotografías Aereas /},
	publisher = {Instituto Geográfico Agustín Codazzi,},
	year = {1991.},
	address = {Santafé de Bogotá :},
	edition = {2.}
}