APA-referens (7:e uppl.)

Crystal, D. (2003). English as a global language (2nd ed.). Cambridge University Press.

Chicago-referens (17:e uppl.)

Crystal, David. English as a Global Language. 2nd ed. New York ; New Delhi: Cambridge University Press, 2003.

MLA-referens (8:e uppl.)

Crystal, David. English as a Global Language. 2nd ed. Cambridge University Press, 2003.