000 00549nam a2200217Ia 4500
008 230524s9999 xx 000 0 und d
020 _a0029253608
040 _cUDSM
050 _aHD41.P67
100 _aPorter, Michael E.
245 0 _aCompetitive strategy: techniques for analysing industries and competitors
260 _aNew York
260 _bFree Press
260 _c1980
300 _axx,396p.
300 _c25cm.
650 _aCompetition
700 _aill.
942 _2Library of Congress Classification
942 _cBook
999 _c116731
_d116731