@book{123820,
	author = {Cruickshank, William M.,},
	title = {Psychology of exceptional children and youth /},
	publisher = {Prentice-Hall,},
	year = {1971.},
	series = {Prentice-Hall psychology series},
	address = {Englewood Cliffs, N.J. :},
	edition = {3d ed.}
}