000 00261nam a2200109Ia 4500
008 220201s1999 xx 000 0 eng d
100 _aVERMA A P
245 0 _aOPERATIONS RESEARCH
260 _aDELHI
_bS K KATARIA AND SONS
_c1999
300 _a1231
942 _2ddc
999 _c92187
_d92187