00326nam a2200109 a 450000500170000008200180001710000230003524500730005826000410013130000180017263000260019020251202164244.0  a658.4034bSET  aSethi, Narendra K.  aOperations managementbproduction management and operations research  aNew DelhibSterling Publishersc1985  a416 p.b24 cm  aOperations Management