Cita APA (7a ed.)

Naterop, B. J., & Revell, R. (1999). Telephoning in english: A communication skills self-study course [CD-ROM]. Cambridge University Press.

Cita Chicago Style (17a ed.)

Naterop, Bertha Jean, y Rod Revell. Telephoning in English: A Communication Skills Self-study Course [CD-ROM]. Cambridge, United Kingdom: Cambridge University Press, 1999.

Cita MLA (9a ed.)

Naterop, Bertha Jean, y Rod Revell. Telephoning in English: A Communication Skills Self-study Course [CD-ROM]. Cambridge University Press, 1999.