@book{67789,
	author = {Leon García, Orfelio G. and Leon García, Orfelio G.},
	title = {Metodologías científicas en Psicología},
	publisher = {Universitat Oberta de Catalunya, },
	year = {2006},
	address = {[Madrid, España] :},
	url = {https://public.digitaliapublishing.com/a/1019}
}