APA引文

Zeter, J. (2008). Sharpening skills for the TOEFL iBT: Four practice tests. Book 1. TR.

Trích dẫn kiểu Chicago

Zeter, Jeff. Sharpening Skills for the TOEFL IBT: Four Practice Tests. Book 1. TR, 2008.

MLA引文

Zeter, Jeff. Sharpening Skills for the TOEFL IBT: Four Practice Tests. Book 1. TR, 2008.

警告：这些引文格式不一定是100％准确.