000 00287nam a2200121Ia 4500
008 211209s1998 xx 000 0 und d
041 _aeng
082 _a658.4034 GUP
100 _aGUPTA, ANJU
245 _aOPERATIONS RESEARCH
260 _aNEW DELHI
_bEXCEL BOOKS
_c1998
300 _a239
999 _c11629
_d11629