Gaya APA
Smart With Why : How Great Leaders Inspire Everyone To Take Action. (2011).
New York:
.
Gaya Chicago
Smart With Why : How Great Leaders Inspire Everyone To Take Action.
2011.
New York:
,
2011.
Text.
Gaya MLA
Smart With Why : How Great Leaders Inspire Everyone To Take Action.
2011.
New York:
,
2011.
Text.
Gaya Turabian
Smart With Why : How Great Leaders Inspire Everyone To Take Action.
New York:
,
2011.
Print.