Cita APA

Sullivan, P. N., & Zhong, G. Y. Q. (1991). Supercourse for the TOEFL (2nd ed.). New York: Prentice Hall Press.

Chicago Style Citation

Sullivan, Patricia Noble, i Grace Yi Qiu Zhong. Supercourse for the TOEFL. 2nd ed. New York: Prentice Hall Press, 1991.

Cita MLA

Sullivan, Patricia Noble, i Grace Yi Qiu Zhong. Supercourse for the TOEFL. 2nd ed. New York: Prentice Hall Press, 1991.