000 00258nam a2200109Ia 4500
008 220201s2003 xx 000 0 eng d
100 _aNAIN N G
245 0 _aOPERATINS RESEARCH
260 _aDELHI
_bDHANPAT RAI AND SONS
_c2003
300 _a772
942 _2ddc
999 _c92647
_d92647