Cita APA (7th ed.)

Gear J. Jolene & Gear R. Robert. (2006). Cambridge Preparation for the TOEFL Test (fourth ed.). Cambridge, Cambridge University Press, 2006.

Cita Chicago (17th ed.)

Gear J. Jolene i Gear R. Robert. Cambridge Preparation for the TOEFL Test. fourth ed. Cambridge, Cambridge University Press, 2006, 2006.

Cita MLA (9th ed.)

Gear J. Jolene i Gear R. Robert. Cambridge Preparation for the TOEFL Test. fourth ed. Cambridge, Cambridge University Press, 2006, 2006.