000 00282nam a22001217a 4500
020 _a978-8183560931
022 _a8183560938
100 _a S.C. Sharma
245 _aOperation Research
260 _aNEW DELHI
_bDISCOVERY PUBLISHING HOUSE
_c2020
300 _a287 PAGES
942 _cBK
999 _c4668
_d4668