Dittrich, J. E. (1988). General manager and strategy formulation: Objectives, missions, strategies and policies. John Wiley.
शिकागो स्टाइल उद्धरणDittrich, John E. General Manager and Strategy Formulation: Objectives, Missions, Strategies and Policies. New Delhi: John Wiley, 1988.
एमएलए उद्धरणDittrich, John E. General Manager and Strategy Formulation: Objectives, Missions, Strategies and Policies. John Wiley, 1988.
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