Não informado. (1958). Journal of Speech and Hearing Research. American Speech-Language-Hearing Association.
Chicago-referens (17:e uppl.)Não informado. Journal of Speech and Hearing Research. Rockville, Md: American Speech-Language-Hearing Association, 1958.
MLA-referens (8:e uppl.)Não informado. Journal of Speech and Hearing Research. American Speech-Language-Hearing Association, 1958.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.