Não informado. (1971). Studies in the linguistic sciences. University of Illinois, Department of Linguistics.
Chicago-referens (17:e uppl.)Não informado. Studies in the Linguistic Sciences. Urbana, Ill: University of Illinois, Department of Linguistics, 1971.
MLA-referens (8:e uppl.)Não informado. Studies in the Linguistic Sciences. University of Illinois, Department of Linguistics, 1971.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.