Waitley, D. (1985). The Joy of Working. AMACOM(American Management Association).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWaitley, Denis. The Joy of Working. New York: AMACOM(American Management Association), 1985.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWaitley, Denis. The Joy of Working. AMACOM(American Management Association), 1985.
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