Weinberg, Gerald M.  <br/><br/>
An introduction to general systems thinking /   
Gerald M. Weinberg. 
 - New York :   John Wiley,   1975. 
 - xxi, 279 p. :   il. 
 - Wiley series on systems engineering and analysis .
<br/><br/> 1- The problem. -2  The approach. -3 System and illusion. -4 Interpreting observations. -5 Breaking down observations. -6 Describing behavoir. -7 Some systems questions. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>TEORIA DE LOS SISTEMAS
<br/><br/><label>Universal Decimal Class. No.: </label>001.5