Goldberg, Samuel <br/><br/>
Introduction to difference equations:   with illustrative examples from economics psychology, and sociology 

 - New York:   John. Wiley,   1958. 
 - 260 p.:   il., graf.;  
<br/><br/><label>Subjects--Topical Terms: </label><br/>DIFFERENTIAL EQUATIONS<br/>FINITE ELEMENT METHOD
<br/><br/><label>Universal Decimal Class. No.: </label>517.96