Blanchard, K. H. (2003). The heart of a leader: Insights on the art of influence. Lighthouse Inspirational Books & Gifts.
Citazione stile Chigago Style (17a edizione)Blanchard, Kenneth H. The Heart of a Leader: Insights on the Art of Influence. Philippines: Lighthouse Inspirational Books & Gifts, 2003.
Citatione MLA (9a ed.)Blanchard, Kenneth H. The Heart of a Leader: Insights on the Art of Influence. Lighthouse Inspirational Books & Gifts, 2003.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.