000 00342nam a2200133Ia 4500
008 220919s9999 xx 000 0 und d
082 _bGUP
100 _aGUPTA, PREM KUMAR
245 0 _aOPERATION RESEARCH
260 _bS.CHAND AND COMPANY PVT. LTD., NEW DELHI
_c2009
300 _a1395
650 _aMechanical Engineering
942 _cBK
999 _c144519
_d144519