APA (7e ed.) Bronvermelding

BISHOP, S. (1999). Assertiveness skills training: A sourcebook of activies.-- ed.1. Viva Books Private Limited.

Chicago (17e ed.) Bronvermelding

BISHOP, Sue. Assertiveness Skills Training: A Sourcebook of Activies.-- Ed.1. New Delhi: Viva Books Private Limited, 1999.

MLA (9e ed.) Bronvermelding

BISHOP, Sue. Assertiveness Skills Training: A Sourcebook of Activies.-- Ed.1. Viva Books Private Limited, 1999.