APA-referens (7:e uppl.)

Barki , B. (1989). Guidance and counselling. Sterling.

Chicago-referens (17:e uppl.)

Barki , B. Guidance and Counselling. New Delhi: Sterling, 1989.

MLA-referens (9:e uppl.)

Barki , B. Guidance and Counselling. Sterling, 1989.