000 00583nam a2200229Ia 4500
003 OSt
005 20220928144522.0
006 a|||||r|||| 00| 0
007 ta
008 220927b |||||||| |||| 00| 0 eng d
024 _a71297
037 _cTextual
040 _aSDCL
_cSDCL
_beng
041 _2eng
_aeng
082 _aSN1:(A), L2
100 _aAckoff Russell L
_9507948
245 0 _aOn purposeful systems.
260 _c1972
700 _a Emery Frede
_9507949
942 _hSN1:(A), L2
_cTEXL
_2CC
999 _c827477
_d827477