APA (7th ed.) Citation
Sharpe, P. J. (1996). Pass key to the TOEFL (2 ed.). Barron's educational series INC.
Chicago Style (17th ed.) Citation
Sharpe, Pamela J. Pass Key to the TOEFL. 2 ed. Barron's educational series INC, 1996.
MLA (9th ed.) Citation
Sharpe, Pamela J. Pass Key to the TOEFL. 2 ed. Barron's educational series INC, 1996.
Warning: These citations may not always be 100% accurate.