Cohen,Steven P. (2002). Negotiating skills for managers. Tata McGraw Hill.
शिकागो स्टाइल उद्धरणCohen,Steven P. Negotiating Skills for Managers. New Delhi: Tata McGraw Hill, 2002.
एमएलए उद्धरणCohen,Steven P. Negotiating Skills for Managers. Tata McGraw Hill, 2002.
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