O'Shaughnessy, J. (1971). Evaluate your sales force. Management publications.
शिकागो स्टाइल उद्धरणO'Shaughnessy, J. Evaluate Your Sales Force. London: Management publications, 1971.
एमएलए उद्धरणO'Shaughnessy, J. Evaluate Your Sales Force. Management publications, 1971.
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