APA ציטוט

Blackwell, A., & Naber, T. (2007). Open forum 1: Academic listening and speaking. Oxford: Oxford Univ. Press.

Trích dẫn kiểu Chicago

Blackwell, Angela, và Therese Naber. Open Forum 1: Academic Listening and Speaking. Oxford: Oxford Univ. Press, 2007.

ציטוט MLA

Blackwell, Angela, và Therese Naber. Open Forum 1: Academic Listening and Speaking. Oxford: Oxford Univ. Press, 2007.