000 00300cam a2200121ua 4500
082 1 4 _a658.4034
_bKAL/O
100 1 _aKalavathy , S .
245 1 0 _aOperations research /
260 _aNew Delhi :
_bVikas Publishing House ,
_c1999.
300 _a216p ;
650 0 _aOperations research
942 _cBK
999 _c68689
_d68689