Cita APA

Sharpe, P. J., & Pamela J. Sharpe; Ph.D. (2006). Pass key to the TOEFL iBT. Hauppauge, NY: Barrons Educational Series, Inc.

Chicago Style Citation

Sharpe, Pamela J., i Pamela J. Sharpe; Ph.D. Pass Key to the TOEFL IBT. Hauppauge, NY: Barrons Educational Series, Inc, 2006.

Cita MLA

Sharpe, Pamela J., i Pamela J. Sharpe; Ph.D. Pass Key to the TOEFL IBT. Hauppauge, NY: Barrons Educational Series, Inc, 2006.