000 00283nam a22001217a 4500
020 _a978-8183561044
022 _a8183561047
100 _a S.C. Sharma
245 _aOperation Research
260 _aNEW DELHI
_bDISCOVERY PUBLISHING HOUSE
_c2020
300 _a283 PAGES
942 _cBK
999 _c4664
_d4664