00409nam a22001457i 4500001001000000005001700010008004100027082002200068100001700090245004000107260005700147300001700204650002400221020001800245SXC02441420260819093745.0260101s2000    ii            000 0 eng d  a001.424 KAL-O222  aKalavathy, S10aOperations research /cKalavathy, S  abVikas Publishing House Pvt. Ltd., New Delhi,c2000  ap. ;c22 cm. 0aOperations research  a9780849322563