000 00411nam a2200169Ia 4500
008 210719s1993 xx 000 0 und d
041 _aeng
082 _a001.424 GOEO
100 _aGOEL (B S) and MITTAL (S K)
245 _aOperations research.
250 _a12
260 _aMeerut
_bPragati Prakashan
_c1993
300 _a956, xv
365 _b100
_cRs
650 _aOperations Research
906 _aO R
999 _c212244
_d212244