Adair, J. E. (2006). Leadership and motivation: The fifty-fifty rule and the eight key principles of motivating others. Kogan Page.
Citazione stile Chigago Style (17a edizione)Adair, John Eric. Leadership and Motivation: The Fifty-fifty Rule and the Eight Key Principles of Motivating Others. London ; Philadelphia: Kogan Page, 2006.
Citatione MLA (9a ed.)Adair, John Eric. Leadership and Motivation: The Fifty-fifty Rule and the Eight Key Principles of Motivating Others. Kogan Page, 2006.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.