000 00425n a2200157 a 4500
000 B B
001 002696
005 20220201163551.0
082 _a338.7
_bM0 ECO
100 _aPorter, Michael .E.
245 _aCompetitive Strategy
_bTechniques for Analyzing Industries and Competitors
260 _aNew York
_bMacmillan Pub.
_c1980
300 _axx,396
690 _aBusiness Enterprise, Economics
908 _aT
999 _c2692
_d2692