Kortmann, B., & Burridge, K. (2008). Varieties of English. Mouton de Gruyter.
Chicago Style (17th ed.) CitationKortmann, Bernd, and Kate Burridge. Varieties of English. Berlin [etc.]: Mouton de Gruyter, 2008.
MLA (9th ed.) CitationKortmann, Bernd, and Kate Burridge. Varieties of English. Mouton de Gruyter, 2008.
Warning: These citations may not always be 100% accurate.