Goldberg, Samuel <br/><br/>
Introduction to difference equations 

 - New York  Science editions, inc.  1961 
 - xii, 260 p.; 22cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Difference equations<br/>Differential - difference equations<br/>Differential equation<br/>Equations, difference<br/>Linear difference equations