Cita APA

Gershon, S. (2002). English upgrade: Student book. Oxford: MacMillan.

Chicago Style Citation

Gershon, Steven. English Upgrade: Student Book. Oxford: MacMillan, 2002.

Cita MLA

Gershon, Steven. English Upgrade: Student Book. Oxford: MacMillan, 2002.

Atenció: Aquestes cites poden no estar 100% correctes.