Korn Henry R. <br/><br/>
An Elementary Approach to Functions 

 - 2nd ed 
 - New York  Mcgraw - Hill Book Company  1978 
 - xii, 459p. 
<br/><br/><label>ISBN: </label>0-07-035401-4 
<br/><br/><label>Dewey Class. No.: </label>515