Kelley, Walter G. <br/><br/>
The theory of differential equations:  classical and qualitative/ 
Walter Kelley, Allan Peterson. 
 - Upper Saddle River, NJ:  Prentice Education,  c2004. 
 - xi, 413 p.:  ill.;  24 cm. 
<br/><br/>Includes bibliographical references (p. 405-407) and index. 
<br/><br/><label>ISBN: </label>0131020269 
<br/><br/><label>LCCN: </label>2003054907 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations.
<br/><br/><label>Dewey Class. No.: </label>515.35  / K29t