Gifford, J. (2013). 100 more great leadership: From successful leaders to managers around the world. Marshall Cavendish.
Chicago-Zitierstil (17. Ausg.)Gifford, Jonathan. 100 More Great Leadership: From Successful Leaders to Managers Around the World. Singapore: Marshall Cavendish, 2013.
MLA-Zitierstil (9. Ausg.)Gifford, Jonathan. 100 More Great Leadership: From Successful Leaders to Managers Around the World. Marshall Cavendish, 2013.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.