Widder, David V.  1898 - <br/><br/>
Advanced Calculus 
Widder, David V. 
 - second 
 - New York  Dover  1989 
 - 498  Illustration & index 
<br/><br/><label>ISBN: </label>486661032 
<br/><br/><label>Dewey Class. No.: </label>515  / W6335