APA (7 वां संस्करण) प्रशस्ति पत्र
Dell, T. (1993). Motivating at work: Empowering employees to give their best (Rev. ed.). Crisp Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Dell, Twyla. Motivating at Work: Empowering Employees to Give Their Best. Rev. ed. Menlo Park, Calif.: Crisp Publications, 1993.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Dell, Twyla. Motivating at Work: Empowering Employees to Give Their Best. Rev. ed. Crisp Publications, 1993.
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