Birkhoff Garret <br/><br/>
Ordinary diffrential equations 

 - 3 
 - New York       John Wiley         1978 
 - xi,342p.  cm. 
<br/><br/> Bibliography 336-338p 
<br/><br/><label>Standard No.: </label>22792 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B331, K9;L8