00335nam a2200121 a 450000500170000010000150001710000150003224500540004726000350010130000230013663000280015963000260018720251202164252.0  aBanga,T.R.  aSharma,S.C  aIndustrial organisation and Engineering Economics  aDelhibKhanna Publishersc1985  a920 p.c24 cm.cPB  aIndustrial organization  aEngineering economics