Gaya APA

Sharpe, P, J. (2015). Barron's : Toefl Strategies and Tips Outsmart the Toefl (2nd. Ed). New York: Barron's Educational Series, Inc.

Gaya MLA

Sharpe, Pamela, J.. "Barron's : Toefl Strategies and Tips Outsmart the Toefl". 2nd. Ed New York: Barron's Educational Series, Inc, 2015. Text.