000 00281nam a2200109 4500
100 _aHillier, Frederick, S. &Lieberman, G. J.
245 _aIntroduction to Operations research
250 _a8th ed.
260 _aNew delhi
_bTata McGraw hill
_c2005
300 _a1061p.
942 _cBK
999 _c23616
_d23616