00641cam a2200217 i 450000100060000000300080000600500170001400800390003102000150007003500190008504000230010404100080012708200220013510000310015724501020018826000360029030000330032650400200035965000170037965000270039615031BD-RjUL20211208235733.0140209s1980    nyua     b    001 0 eng  a0029253608  a(BD-RjUL)15085  aDLCcDLCdDLCbeng  aeng00a658219bPOC 19801 aPorter, Michael E.,d1947-10aCompetitive strategy :btechniques for analyzing industries and competitors /cMichael E. Porter.  aNew York :bFree Press,cc1980.  axx, 396 p. :bill. ;c25 cm.  aIncludes index. 0aCompetition. 0aIndustrial management.