Cita APA (7a ed.)

Gear, J., & Gear, R. (2012). Cambridge preparation for the TOEFL test (4th ed., 11th print.). Cambridge University Press.

Cita Chicago Style (17a ed.)

Gear, Jolene, y Robert Gear. Cambridge Preparation for the TOEFL Test. 4th ed., 11th print. Cambridge [etc.]: Cambridge University Press, 2012.

Cita MLA (9a ed.)

Gear, Jolene, y Robert Gear. Cambridge Preparation for the TOEFL Test. 4th ed., 11th print. Cambridge University Press, 2012.