APA استشهاد

Avtar Singh. (2004). Professional ethics: Changing profession, changing ethics. Lexis Nexis.

استشهاد بنمط شيكاغو

Avtar Singh. Professional Ethics: Changing Profession, Changing Ethics. New Delhi: Lexis Nexis, 2004.

MLA استشهاد

Avtar Singh. Professional Ethics: Changing Profession, Changing Ethics. Lexis Nexis, 2004.