Cruickshank, W. M. (1971). Psychology of exceptional children and youth (3d ed.). Prentice-Hall.
Chicago-referens (17:e uppl.)Cruickshank, William M. Psychology of Exceptional Children and Youth. 3d ed. Englewood Cliffs; N.J.: Prentice-Hall, 1971.
MLA-referens (8:e uppl.)Cruickshank, William M. Psychology of Exceptional Children and Youth. 3d ed. Prentice-Hall, 1971.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.