APA استشهاد

Still, R. R. (2013). Sales management decisions, strategies and cases (5 Edition.).

استشهاد بنمط شيكاغو

Still, Richard R. Sales Management Decisions, Strategies and Cases. 5 Edition. Pearson : New Delhi, 2013.

MLA استشهاد

Still, Richard R. Sales Management Decisions, Strategies and Cases. 5 Edition. 2013.