000 00315nam a2200121Ia 4500
008 221117b |||||||| |||| 00| 0 eng d
040 _aBGL
_cBGL
082 _a511KAP;O
100 _aGupta, P K
245 0 _aOperation Research & Statistical Analysis
260 _aNew Delhi
_bSultan Chand & Sons
_c1981
942 _cWD
999 _c21884
_d21884