APA (7th ed.) Citation

Crystal, D. (2012). English as a global language (2nd ed.). Cambridge University Press.

Chicago Style (17th ed.) Citation

Crystal, David. English as a Global Language. 2nd ed. New York: Cambridge University Press, 2012.

MLA (9th ed.) Citation

Crystal, David. English as a Global Language. 2nd ed. Cambridge University Press, 2012.