APA استشهاد

William P Athayde. (2015). Project Management Essentials (3rd Ed.). Viva Books.

استشهاد بنمط شيكاغو

William P Athayde. Project Management Essentials. 3rd Ed. New Delhi: Viva Books, 2015.

MLA استشهاد

William P Athayde. Project Management Essentials. 3rd Ed. Viva Books, 2015.