Black, B. &. H. (2017). Ego free leadership: Ending the uncoscious habits. Greenleaf Book Group Press.
Citazione stile Chigago Style (17a edizione)Black, Brandon & Huges. Ego Free Leadership: Ending the Uncoscious Habits. Austin, Texas: Greenleaf Book Group Press, 2017.
Citatione MLA (9a ed.)Black, Brandon & Huges. Ego Free Leadership: Ending the Uncoscious Habits. Greenleaf Book Group Press, 2017.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.