APA引文

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

Trích dẫn kiểu Chicago

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

MLA引文

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

警告：這些引文格式不一定是100％准確.