Cita APA

Gear, J., & Gear, R. (2006). Cambridge preparation for the TOEFL test (4th ed.). Cambridge New York: Cambridge University Press.

Citación estilo Chicago

Gear, Jolene, y Robert Gear. Cambridge Preparation for the TOEFL Test. 4th ed. Cambridge New York: Cambridge University Press, 2006.

Cita MLA

Gear, Jolene, y Robert Gear. Cambridge Preparation for the TOEFL Test. 4th ed. Cambridge New York: Cambridge University Press, 2006.