APA استشهاد

Cohen,Steven P. (2002). Negotiating skills for managers. Tata McGraw Hill.

استشهاد بنمط شيكاغو

Cohen,Steven P. Negotiating Skills for Managers. New Delhi: Tata McGraw Hill, 2002.

MLA استشهاد

Cohen,Steven P. Negotiating Skills for Managers. Tata McGraw Hill, 2002.