Boyce, William E. <br/><br/>
Elementary differential equations and boundary value problems 

 - 4th Edition 
 - New York  John Wiley  1986 
 - xvi,654p. 
<br/><br/><label>ISBN: </label> USD 5.50 
<br/><br/><label>Source: </label> USD 5.50 
<br/><br/><label>Dewey Class. No.: </label>515.35 BOY