Baker, A. (1977). Ship or sheep?: An intermediate Pronunciation course (Xuất bản mới.). New York: Cambridge University.
Styl ChicagoBaker, Ann. Ship or Sheep?: An Intermediate Pronunciation Course. Xuất bản mới. New York: Cambridge University, 1977.
Citace podle MLABaker, Ann. Ship or Sheep?: An Intermediate Pronunciation Course. Xuất bản mới. New York: Cambridge University, 1977.
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