000 00559nam a2200193Ia 4500
003 OSt
005 20230327112554.0
008 210423s1991 xx 000 0 und d
040 _cAL
041 _aeng
082 _a658.4034
_223
_bGUPP
100 _aGUPTA (P K) ; HIRA (D S).
_977799
245 _aProblems in operations research: principles and solutions.
260 _aNew Delhi
_bS Chand & Company Ltd
_c1991
300 _avi,1078.
365 _b220
_cINR
906 _aoperations ; principles ; Problems ; research: ; solutions.
942 _2ddc
_cBK
999 _c155074
_d155074