Não informado. (1970). North Eastern Linguistcs Society. University of Pittsburgh.
Chicago-referens (17:e uppl.)Não informado. North Eastern Linguistcs Society. Amherst, Mass: University of Pittsburgh, 1970.
MLA-referens (8:e uppl.)Não informado. North Eastern Linguistcs Society. University of Pittsburgh, 1970.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.