Covey, S. R. (2004). The 7 habits of highly effective people. Pocket books.
शिकागो स्टाइल उद्धरणCovey, Stephan R. The 7 Habits of Highly Effective People. London: Pocket books, 2004.
एमएलए उद्धरणCovey, Stephan R. The 7 Habits of Highly Effective People. Pocket books, 2004.
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