Derrick, W.R. <br/><br/>
First course in differential equations 

 - 3rd ed. 
 -  CBS Pub.  1989 
 - 555p. 
<br/><br/><label>ISBN: </label> 70 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MATHS
<br/><br/><label>Dewey Class. No.: </label>515.35  / DER