TY  - GEN
AU  - MAGRETTA, JOAN
TI  - UNDERSTANDING MICHAEL PORTER
SN  - 9781422160596
U1  - 658.4012 
PY  - 2012///
CY  - BOSTON
PB  - HAVARD BUSINESS REVIEW
N1  - CRB5830/ 17-JANAUARY-12; BOOK WORLD ENTERPRISES
ER  -