TY  - BOOK
AU  - Porter, Michael E.
TI  - On competition : : updated and expanded edition 
SN  - 9781422126967
U1  - 374.22  1
PY  - 2008///
CY  - USA
PB  - Harvard Business Review Book
KW  - Competition and strategy : core concepts
KW  - The competitiveness of locations
ER  -