Παραπομπή σε μορφή APA (7η εκδ.)

Hashemi L. Louise & Thomas B. Barbara. (2011). Grammar for First Certificate: Grammar reference and practice (5th ed.). Cambridge, Cambridge University Press, 2011.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hashemi L. Louise και Thomas B. Barbara. Grammar for First Certificate: Grammar Reference and Practice. 5th ed. Cambridge, Cambridge University Press, 2011, 2011.

Παραπομπή σε μορφή MLA (9th εκδ.)

Hashemi L. Louise και Thomas B. Barbara. Grammar for First Certificate: Grammar Reference and Practice. 5th ed. Cambridge, Cambridge University Press, 2011, 2011.