Rainville, Earl David,  1907- <br/><br/>
Elementary differential equations / 
Earl D. Rainville, Phillip E. Bedient 
 - 6th ed. 
 - New York :  Macmillan Publishing Co.,  1981 
 - 529 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>0023977701 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations