APA Style

KAPLAN, . (2009). TOEFL iBT with CD-ROM : proven, practical tools to help you score higher. 4th ed (4th ed.). New York: Kaplan.

MLA Style

KAPLAN, . "TOEFL iBT with CD-ROM : proven, practical tools to help you score higher. 4th ed". 4th ed. New York: Kaplan, 2009. E-Book.