APA (7e ed.) Bronvermelding

Hashemi L. Louise & Thomas B. Barbara. (2009). Grammar for First Certificate: Grammar reference and practice (Reprinted ed.). Cambridge, Cambridge University Press, 2009.

Chicago (17e ed.) Bronvermelding

Hashemi L. Louise en Thomas B. Barbara. Grammar for First Certificate: Grammar Reference and Practice. Reprinted ed. Cambridge, Cambridge University Press, 2009, 2009.

MLA (9e ed.) Bronvermelding

Hashemi L. Louise en Thomas B. Barbara. Grammar for First Certificate: Grammar Reference and Practice. Reprinted ed. Cambridge, Cambridge University Press, 2009, 2009.