000 00303nam a2200121Ia 4500
008 221102s9999 xx 000 0 und d
082 _a658.4012 POR
100 _aPorter, Michael E
245 0 _aCompetitive strategy
260 _bThe Free Press
_aNew York
_c2004
300 _axxviii,396 p.
942 _cBK
999 _c3686
_d3686