000 00298nam a2200121Ia 4500
008 211209s1979 xx 000 0 und d
041 _aeng
082 _a658.403 GHO
100 _aGHOSAL A
245 _aELEMENTS OF OPERATIONAL RESEARCH
260 _bS CHAND AND COMPANY LTD.
_c1979
300 _a298
999 _c20211
_d20211