International Leadership Association, Sowcik, M., & Amaladas, S. (2015). Leadership 2050: Critical challenges, key contexts, and emerging trends (First edition.). Emerald.
Lua i Stíl Chicago (17ú heag.)International Leadership Association, Matthew Sowcik, agus Stan Amaladas. Leadership 2050: Critical Challenges, Key Contexts, and Emerging Trends. First edition. Bingley, England: Emerald, 2015.
Lua MLA (9ú heag.)International Leadership Association, et al. Leadership 2050: Critical Challenges, Key Contexts, and Emerging Trends. First edition. Emerald, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.