Bolton, K., & Kachru, B. B. (2007). World Englishes: Critical concepts in linguistics. Routlegde.
Chicago Style (17. basım) AtıfBolton, Kingsley, ve Braj B. Kachru. World Englishes: Critical Concepts in Linguistics. London ; New York: Routlegde, 2007.
MLA (8th ed.) AtıfBolton, Kingsley, ve Braj B. Kachru. World Englishes: Critical Concepts in Linguistics. Routlegde, 2007.
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