Rainville, Earl David,  1907- <br/><br/>
Elementary differential equations / 
Earl D. Rainville, Phillip E. Bedient. 
 - 7th ed. 
 - New York :  London :  Macmillan ;  Collier Macmillan,  c1989. 
 - xiii, 546 p. :  ill. (some col.) ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0023978600 9780023978609 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations.
<br/><br/><label>Dewey Class. No.: </label>515.35 RAI