APA استشهاد

Diwan, P., & Aggrawal, L. (1997). Business communication. Excel books.

استشهاد بنمط شيكاغو

Diwan, Parag, و L.N Aggrawal. Business Communication. New Delhi: Excel books, 1997.

MLA استشهاد

Diwan, Parag, و L.N Aggrawal. Business Communication. Excel books, 1997.