@book{69123,
	author = {Erickson, Marion J.},
	title = {Cómo es el niño retardado y cómo enseñarle},
	publisher = {Editorial Paidós},
	year = {1979.},
	series = {Biblioteca del educador contemporáneo ; 31},
	address = {Buenos Aires},
	edition = {4. ed.},
	note = {Translation of : The mentally retarded child in the classroom.}
}