@book{2826,
	author = {Gallego Badillo, Romulo},
	title = {Competencias cognoscitivas :},
	publisher = {Cooperativa Editorial Magisterio,},
	year = {1999.},
	series = {Colección Aula Abierta},
	address = {Bogotá :},
	edition = {2 ed.}
}