Style de citation APA (7e éd.)

Crystal, D. (1997). English as a global language (1a. ed.). Cambridge University Press.

Style de citation Chicago (17e éd.)

Crystal, David. English as a Global Language. 1a. ed. Cambridge: Cambridge University Press, 1997.

Style de citation MLA (9e éd.)

Crystal, David. English as a Global Language. 1a. ed. Cambridge University Press, 1997.