000 00292nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aSwarup (Kanti) etc
245 0 _aOperations research
260 _b"Sultan Chand & Sons, New Delhi"
260 _c1977
365 _b22.50
942 _cBK
999 _c201827
_d201827