Adair, J. (2009). How to grow leaders: The seven key principles of effective leadership dvelopment. Kogan Page.
Lua i Stíl Chicago (17ú heag.)Adair, John. How to Grow Leaders: The Seven Key Principles of Effective Leadership Dvelopment. London: Kogan Page, 2009.
Lua MLA (9ú heag.)Adair, John. How to Grow Leaders: The Seven Key Principles of Effective Leadership Dvelopment. Kogan Page, 2009.
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