000 00355pam a2200157a 44500
008 230515b1986 xxu||||| |||| 00| 0 eng d
020 _aNULL
041 _aENGL
082 _a620.7 / ADD
100 _aT.R.ADDIS
245 _aDESIGNING KNOWLEDGE-BASED SYSTEMS
250 _aN.D.
260 _aNULL
_bPRERI
_c1986
300 _a322 PB
650 _aNULL
999 _c630240
_d630240