Cita APA (7a ed.)

Naterop, B. J., & Revell, R. (1997). Telephoning in english (2a. ed.). Cambridge University.

Cita Chicago Style (17a ed.)

Naterop, B Jean, y Rod Revell. Telephoning in English. 2a. ed. Cambridge: Cambridge University, 1997.

Cita MLA (9a ed.)

Naterop, B Jean, y Rod Revell. Telephoning in English. 2a. ed. Cambridge University, 1997.