Fries, C. C. (1964). Linguistics: The study of language. The University de Michigan.
Chicago Style (17. basım) AtıfFries, Charles C. Linguistics: The Study of Language. Nueva York: The University de Michigan, 1964.
MLA (9th ed.) AtıfFries, Charles C. Linguistics: The Study of Language. The University de Michigan, 1964.
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