BOYCE, W. E. <br/><br/>
Elementary Differential Equations 

 - New York,  John Wiley & Sons,  1986. 
 - xvi, 551p.: ill.  Index  25cm. 
<br/><br/><label>ISBN: </label>0-471-07894-8 
<br/><br/><label>Dewey Class. No.: </label>LM 515.35 BOY