000 00349cam a2200133ua 4500
020 _a978-1-4221-6059-6
082 _a658.4012
_bMAG/U
100 _aMagretta, Joan.
245 _aUnderstanding Michael Porter :
260 _aMassachusetts:
_bHarvard Business Review Press.
_c2012.
300 _a236p.
650 _aStrategic management
942 _cBK
999 _c74400
_d74400