Dale, E. (1966). Modern management methods. Harmondsworth: Penguin Books.
शिकागो स्टाइल उद्धरणDale, Ernest. Modern Management Methods. Harmondsworth: Penguin Books, 1966.
एमएलए उद्धरणDale, Ernest. Modern Management Methods. Harmondsworth: Penguin Books, 1966.
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