00298nam a2200109 a 450000500170000008200180001710000280003524500430006326000440010630000230015063000150017320251202164240.0  a658.0051bHBR  aHarvard Business Review  aMarketing planning and strategy part 6  aNew YorkbHarvard Business Reviewc1976  a152 p.c24 cm.bHB  aManagement