GOLDBERG Samuel <br/><br/>
Introduction to differente equations   With illustrative examples from economics, psychology and sociology.    

 - New York  Science Addition Inc.         1958 
 - xii,260p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>B33, J8/SC