International Leadership Association, Sowcik, M., & Amaladas, S. (2015). Leadership 2050: Critical challenges, key contexts, and emerging trends (First edition.). Emerald.
Chicago-čujuhus (17. p.)International Leadership Association, Matthew Sowcik, juo Stan Amaladas. Leadership 2050: Critical Challenges, Key Contexts, and Emerging Trends. First edition. Bingley, England: Emerald, 2015.
MLA-čujuhus (9. p.)International Leadership Association, et al. Leadership 2050: Critical Challenges, Key Contexts, and Emerging Trends. First edition. Emerald, 2015.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.