Cita APA (7th ed.)

Sharpe, P. J. (1999). How to Prepare for the TOEFL: Test of English as a Foreign Language (10th ed.). Barron's Educational Series.

Cita Chicago (17th ed.)

Sharpe, Pamela J. How to Prepare for the TOEFL: Test of English as a Foreign Language. 10th ed. Hauppauge, N.Y.: Barron's Educational Series, 1999.

Cita MLA (9th ed.)

Sharpe, Pamela J. How to Prepare for the TOEFL: Test of English as a Foreign Language. 10th ed. Barron's Educational Series, 1999.