@book{7560,
	author = {Sánchez Gamboa, Silvio},
	title = {Fundamentos para la investigación educativa :},
	publisher = {Cooperativa Editorial Magisterio,},
	year = {1998.},
	series = {Colección Mesa Redonda; },
	address = {Bogotá :},
	edition = {1a ed.}
}