Rainville, Earl David,  1907- <br/><br/>
Elementary differential equations / 
Earl D. Rainville, Phillip E. Bedient. 
 - 6th ed. 
 - New York :  London :  Macmillan  Collier Macmillan,  1981. 
 - xiv, 529 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0023977701 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations