Wallin, J. E. W. (1949). Children with mental and physical handicaps. Prentice-Hall.
Chicago-referens (17:e uppl.)Wallin, John Edward Wallace. Children with Mental and Physical Handicaps. New York: Prentice-Hall, 1949.
MLA-referens (9:e uppl.)Wallin, John Edward Wallace. Children with Mental and Physical Handicaps. Prentice-Hall, 1949.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.