00359nam a2200133Ia 4500008004100000020001800041041000800059082002100067100001400088245006100102250001100163260004300174300000800217211209s2003    xx            000 0 und d  a81-8054-030-8  aeng  a658.4034 GUP/MAN  aGUPTA P K  aPROBLEMS IN OPERATIONS RESEARCH( METHODS AND SOLUTIONS)   a10 ed.  aNEW DELHIbSULTAN CHAND AND SONSc2003  a771