Não informado. (1967). Communication. National Society for Autistic Children.
Chicago-viite (17. p.)Não informado. Communication. London: National Society for Autistic Children, 1967.
MLA-viite (8. p.)Não informado. Communication. National Society for Autistic Children, 1967.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.