Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

CRYSTAL, David. English as a Global Language.-- Ed.2. Cambridge: Cambridge University Press, 2003.

Style de citation MLA (9e éd.)

CRYSTAL, David. English as a Global Language.-- Ed.2. Cambridge University Press, 2003.