@book{133319,
	author = {Nickel, Horst.},
	title = {Psicología del desarrollo de la infancia y de la adolescencia},
	publisher = {Editorial Herder},
	year = {1978.},
	address = {Barcelona},
	edition = {2a ed.},
	note = {Translation of: Etwicklungs-psychologie des Kindses-und Jungendalters}
}