Παραπομπή APA

McClay, R. (2015). The art of modern sales management. Viva Books.

Παραπομπή Chicago Style

McClay, Renie. The Art of Modern Sales Management. New Delhi: Viva Books, 2015.

Παραπομπή MLA

McClay, Renie. The Art of Modern Sales Management. Viva Books, 2015.