000 00428nam a22001697a 4500
003 NUST - PNEC
005 20170116180952.0
008 150908b xxu||||| |||| 00| 0 eng d
020 _a0850388597
040 _cLIBRARY
082 _a621.3819551 ADD
100 _99180
_aAddis, TR
245 _aDesigning knowledge based systems
_cTR Addis
260 _cc.1985
650 _99177
_aMS communication
_xMScom
942 _2ddc
_cBK
999 _c66443
_d66443