Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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