Ross, S. L. <br/><br/>
Introductory to ordinary differential equations 

 - 4th 
 - Canada:  John Wiley & son,  1989. 
 - xii, 609 p.:  ill.;  24 cm. 
<br/><br/> Includes bibliographical references 
<br/><br/><label>ISBN: </label>0471098817 
<br/><br/><label>Subjects--Topical Terms: </label><br/>mathematics
<br/><br/><label>LC Class. No.: </label>DUCE Q372.R815