Bolton, K., & Kachru, B. B. (2007). World Englishes: Critical concepts in linguistics. Routlegde.
Chicago Style aipamenaBolton, Kingsley, and Braj B. Kachru. World Englishes: Critical Concepts in Linguistics. London ; New York: Routlegde, 2007.
MLA aipamenaBolton, Kingsley, and Braj B. Kachru. World Englishes: Critical Concepts in Linguistics. Routlegde, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.