Cita APA (7a ed.)

Garside, B., & Garside, T. (2002). Essential telephoning in english: Student's book. Cambridge University Press.

Cita Chicago Style (17a ed.)

Garside, Barbara, y Tony Garside. Essential Telephoning in English: Student's Book. New York: Cambridge University Press, 2002.

Cita MLA (9a ed.)

Garside, Barbara, y Tony Garside. Essential Telephoning in English: Student's Book. Cambridge University Press, 2002.