APA (7th ed.) Zitazioa

Sharpe, P. J. (2001). How to prepare for the toefl test (Tenth edition.). Barron's.

Chicago Style (17th ed.) Zitazioa

Sharpe, Pamela J. How to Prepare for the Toefl Test. Tenth edition. New York: Barron's, 2001.

MLA (9th ed.) Zitazioa

Sharpe, Pamela J. How to Prepare for the Toefl Test. Tenth edition. Barron's, 2001.