Gaya APA

Sharpe, P, J. (2007). Barron's [the Leader in Test Preparation]: Practice Exercises for the TOEFL (Ed. 6.--). New York: Ohio University.

Gaya MLA

Sharpe, Pamela, J.. "Barron's [the Leader in Test Preparation]: Practice Exercises for the TOEFL". Ed. 6.-- New York: Ohio University, 2007. Text.