@book{135123,
	author = {Zulliger, Hans},
	title = {Evolución psicológica del niño /},
	publisher = {Editorial Herder ,},
	year = {1984, 1971.},
	series = {Biblioteca de psicologia},
	address = {Barcelona :},
	edition = {4a ed.},
	note = {Translation of: Das kind in der entwicklung.}
}