APA način citiranja

Sharpe, P. J., & Pamela J. Sharpe. (2010). Toefl iBT: Internet based test . (12th edition.). Hồ Chí Minh: NXB trẻ.

Čikaški stil citiranja

Sharpe, Pamela J., i Pamela J. Sharpe. Toefl IBT: Internet Based Test . 12th edition. Hồ Chí Minh: NXB trẻ, 2010.

MLA način citiranja

Sharpe, Pamela J., i Pamela J. Sharpe. Toefl IBT: Internet Based Test . 12th edition. Hồ Chí Minh: NXB trẻ, 2010.