APA Style
Sinek, Simon. (2009).
Start With Why: How Great Leaders Inspire Everyone to Take Action .
United States:
Penguin Group.
Chicago Style
Sinek, Simon.
Start With Why: How Great Leaders Inspire Everyone to Take Action.
United States:
Penguin Group,
2009.
Text.
MLA Style
Sinek, Simon.
Start With Why: How Great Leaders Inspire Everyone to Take Action.
United States:
Penguin Group,
2009.
Text.
Turabian Style
Sinek, Simon.
Start With Why: How Great Leaders Inspire Everyone to Take Action.
United States:
Penguin Group,
2009.
Print.