Ackoff Russell L <br/><br/>
On purposeful systems 
Ackoff Russell L; Emery Ered E 
 - London  Tavistock Publication UK          1972 
 - xii, 288p.  cm. 
<br/><br/> Bib at the end of each chapter; Appendix  p 265-80 
<br/><br/><label>ISBN: </label>422 74030 6 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology
<br/><br/><label>Dewey Class. No.: </label>SN1, L2