International Leadership Association, Sowcik, M., & Amaladas, S. (2015). Leadership 2050: Critical challenges, key contexts, and emerging trends (First edition.). Emerald.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रInternational Leadership Association, Matthew Sowcik, और Stan Amaladas. Leadership 2050: Critical Challenges, Key Contexts, and Emerging Trends. First edition. Bingley, England: Emerald, 2015.
एमएलए (9वां संस्करण) प्रशस्ति पत्रInternational Leadership Association, et al. Leadership 2050: Critical Challenges, Key Contexts, and Emerging Trends. First edition. Emerald, 2015.
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