APA-Zitierstil (7. Ausg.)

Sharpe, P. J. (2010). Barron's TOEFL iBT: Internet-based test (13. ed.). Barron's Educational Series.

Chicago-Zitierstil (17. Ausg.)

Sharpe, Pamela J. Barron's TOEFL IBT: Internet-based Test. 13. ed. Hauppauge, N.Y: Barron's Educational Series, 2010.

MLA-Zitierstil (9. Ausg.)

Sharpe, Pamela J. Barron's TOEFL IBT: Internet-based Test. 13. ed. Barron's Educational Series, 2010.