Manning, G. (2009). The art of leadership. McGraw-Hill Irwin.
शिकागो स्टाइल उद्धरणManning, George. The Art of Leadership. McGraw-Hill Irwin, 2009.
एमएलए उद्धरणManning, George. The Art of Leadership. McGraw-Hill Irwin, 2009.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.