@book{189,
	author = {Elkonin, Daniil B.},
	title = {Psicología del juego},
	publisher = {Antonio Machado libros,},
	year = {2003},
	address = {Madrid :},
	edition = {2 ed.},
	url = {https://go.openathens.net/redirector/uoh.cl?url=https://uoh.overdrive.com/media/10186433?cid=290259}
}