Rainville, Earl David. <br/><br/>
Elementary differential equations / 
Earl D. Rainveille, Phillip E. Bedient, Richard E. Bedient. 
 - 8th ed. 
 - Singapore :  Prentice-Hall International,  c1997. 
 - xiii, 530 p. : ill. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations