Siertsema, B. A test in phonetics: 500 questions andanswers on english pronunciation and how to teach it in west africa. Martinus Nijhoff.
Citace podle Chicago (17th ed.)Siertsema, B. A Test in Phonetics: 500 Questions Andanswers on English Pronunciation and How to Teach It in West Africa. The Hague: Martinus Nijhoff.
Citace podle MLA (9th ed.)Siertsema, B. A Test in Phonetics: 500 Questions Andanswers on English Pronunciation and How to Teach It in West Africa. Martinus Nijhoff.
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