Cita APA

Porter, D. (2008). Check your vocabulary for academic English. London: Macmillan.

Chicago Style Citation

Porter, David. Check Your Vocabulary for Academic English. London: Macmillan, 2008.

Cita MLA

Porter, David. Check Your Vocabulary for Academic English. London: Macmillan, 2008.

Atenció: Aquestes cites poden no estar 100% correctes.