Betz,Herman <br/><br/>
Differential Equations With Applications. 
by Herman Betz,Paul B Burcham,George M Ewing 
 - 2nd Ed. 
 - New York:  Harper & Row. 
 - X,354p.:  22 cm. 
<br/><br/>Appendix,Ans Shet,Index. 
<br/><br/><label>Subjects--Index Terms: </label>Mathematics 
<br/><br/><label>Dewey Class. No.: </label>510