International Council for Children's Play (ICCP), Conference 1966. (1966). Bibliography on Play: Section on Play for handicapped Children. Children's Play Activities.
Chicago-referens (17:e uppl.)International Council for Children's Play (ICCP), Conference 1966. Bibliography on Play: Section on Play for Handicapped Children. London: Children's Play Activities, 1966.
MLA-referens (8:e uppl.)International Council for Children's Play (ICCP), Conference 1966. Bibliography on Play: Section on Play for Handicapped Children. Children's Play Activities, 1966.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.