@book{225433,
	author = {Zavalloni, Roberto.},
	title = {Introducción a la pedagogía especial},
	publisher = {Editorial Herder},
	year = {1983},
	series = {Biblioteca de psicologia},
	address = {Barcelona},
	edition = {3. ed.},
	note = {Translation of : Introduzione alla pedagogia speciale.}
}