Smith, D. M. (1997). The practical executive and leadership. NTC Business Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSmith, Dayle M. The Practical Executive and Leadership. Lincolnwood, Ill: NTC Business Books, 1997.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSmith, Dayle M. The Practical Executive and Leadership. NTC Business Books, 1997.
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