Gifford, J. (2013). 100 more great leadership: From successful leaders to managers around the world. Marshall Cavendish.
Παραπομπή σε μορφή Chicago (17η εκδ.)Gifford, Jonathan. 100 More Great Leadership: From Successful Leaders to Managers Around the World. Singapore: Marshall Cavendish, 2013.
Παραπομπή σε μορφή MLA (9th εκδ.)Gifford, Jonathan. 100 More Great Leadership: From Successful Leaders to Managers Around the World. Marshall Cavendish, 2013.
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