APA aipamena

Putlack, M. A., & Poirier, S. (2008). How to master skills for the TOEFL iBT: Speaking : Advanced. Tp.HCM: Tổng hợp.

Chicago Style aipamena

Putlack, Micheal A., và Stephen Poirier. How to Master Skills for the TOEFL IBT: Speaking : Advanced. Tp.HCM: Tổng hợp, 2008.

MLA aipamena

Putlack, Micheal A., và Stephen Poirier. How to Master Skills for the TOEFL IBT: Speaking : Advanced. Tp.HCM: Tổng hợp, 2008.