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*1001 $aChurchman, C. West$0(NO-TrBIB)90264506$_74095400
*24514$aThe systems approach
*250  $aRev. and updated
*260  $aNew York$bLaurel$c1983
*300  $aXII, 243 s.
*653  $aSystemteori$_20852000
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*999  $aoai:nb.bibsys.no:999109607804702202$b2021-11-14T21:11:02Z$z999109607804702202
^