Cita APA

Naterop,, J. B., & Revell,, R. Telephoning in English- Audio CD 1. Cambridge University Press.

Citación estilo Chicago

Naterop,, Jean B., y Rod Revell. Telephoning in English- Audio CD 1. New York: Cambridge University Press.

Cita MLA

Naterop,, Jean B., y Rod Revell. Telephoning in English- Audio CD 1. Cambridge University Press.