000 00399nam a2200193Ia 4500
008 240220s9999 xx 000 0 und d
041 _aENG
082 _a658.1
100 _aGupta P.
245 0 _aOperation research.
260 _aNew Delhi
260 _bS Chand And Co
260 _c2000
300 _a1055p.
365 _b160
650 _aMECHANICAL
700 _aHira D. S.
942 _cBB
999 _c77
_d77