TY  - BOOK
AU  - Sinek,Simon
TI  - Start with why: how great leaders inspire everyone to take action 
SN  - 9780241958223
PY  - 2011///
CY  - New York
PB  - Portfolio / Penguin
KW  - Leadership
N1  - Includes bibliographical references (p. [234]-240) and index
ER  -