Still, R. R. (2013). Sales management decisions, strategies and cases (5 Edition.).
शिकागो स्टाइल उद्धरणStill, Richard R. Sales Management Decisions, Strategies and Cases. 5 Edition. Pearson : New Delhi, 2013.
एमएलए उद्धरणStill, Richard R. Sales Management Decisions, Strategies and Cases. 5 Edition. 2013.
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