Παραπομπή APA

Raina, A. (2004). Speak right for a call centre job: A complete training guide for international telephone interface. Penguin Books India.

Παραπομπή Chicago Style

Raina, Arjun. Speak Right for a Call Centre Job: A Complete Training Guide for International Telephone Interface. New Delhi: Penguin Books India, 2004.

Παραπομπή MLA

Raina, Arjun. Speak Right for a Call Centre Job: A Complete Training Guide for International Telephone Interface. Penguin Books India, 2004.