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

 - 3rd ed. 
 - New york :  John wiley and sons ,  ©1965. 
 - xiv, 582p. :  illu. (b & w) ;  23.5CM (Hardbound) 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0471093343 
<br/><br/><label>Dewey Class. No.: </label>515.39  / BOY / G