@book{27017,
	author = {Uhia Pinilla, Agustin. and Angel, Humberto.},
	title = {Ayudas educativas :},
	publisher = {Ed. Voluntad,},
	year = {1971.},
	series = {Colección Didactica y Magisterio},
	address = {Bogotá :},
	edition = {2a ed.},
	note = {Al principiar el titulo : Agustin Uhia, Humberto Angel.}
}