000 00476nam a2200145Ia 45e0
008 181001s1986 xx 000 0 und d
100 _aGoel B.S. etc.
245 0 _aOperation research
260 _aMeerut
_bPragati Prakashan
_c1986
300 _a678
700 _a5th
942 _2ddc
_cBK
999 _c3555
_d3555