Staley, J. D. (1963). Improving individual productivity. American Management Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रStaley, John D. Improving Individual Productivity. New York: American Management Association, 1963.
एमएलए (9वां संस्करण) प्रशस्ति पत्रStaley, John D. Improving Individual Productivity. American Management Association, 1963.
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