Viva career skills library. (2007). Professional ethics and etiquette/2e (2nd ed.). Viva books.
استشهاد بنمط شيكاغوViva career skills library. Professional Ethics and Etiquette/2e. 2nd ed. New Delhi: Viva books, 2007.
MLA استشهادViva career skills library. Professional Ethics and Etiquette/2e. 2nd ed. Viva books, 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.