Não informado. (1971). Studies in the linguistic sciences. University of Illinois, Department of Linguistics.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Studies in the Linguistic Sciences. Urbana, Ill: University of Illinois, Department of Linguistics, 1971.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Studies in the Linguistic Sciences. University of Illinois, Department of Linguistics, 1971.
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