Cita APA

Sinek, S. (2011). Start with why: How great leaders inspire everyone to take action. London [etc.]: Portfolio Penguin.

Citación estilo Chicago

Sinek, Simon. Start With Why: How Great Leaders Inspire Everyone to Take Action. London [etc.]: Portfolio Penguin, 2011.

Cita MLA

Sinek, Simon. Start With Why: How Great Leaders Inspire Everyone to Take Action. London [etc.]: Portfolio Penguin, 2011.