000 00315nam a2200133Ia 4500
008 221001s1995 xx 000 0 eng d
082 _a003 GUP
100 _aGupta, P. K.
245 0 _aOperations research
250 _a3rd ed.
260 _aNew Delhi
_bS. Chand
_c1995
300 _axvi, 1055p.
942 _2ddc
_cBK
999 _c26423
_d26423