The Process of Model-Building in the Behavioral Sciences / 
W. Ross Ashby and the other; Editor Ralph M. Stogdill; The Norton Library. 
 - New York :  W.W. Norton & Company,  1970. 
 - 181 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>The Process of Model-Building
<br/><br/><label>Subjects--Index Terms: </label>mathematical models