Zeter, J., & Pederson, M. (2008). Sharpening skills for the TOEFL iBT. Tp. HCM: Trẻ.
Chicago Style CitationZeter, Jeff., i Michael Pederson. Sharpening Skills for the TOEFL IBT. Tp. HCM: Trẻ, 2008.
Cita MLAZeter, Jeff., i Michael Pederson. Sharpening Skills for the TOEFL IBT. Tp. HCM: Trẻ, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.