Ayres, Frank <br/><br/>
Theory and problems of differential equations 

 - New York  Scaum  1958 
 - 440 p.   
 - Schaum's outline series; 3 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>515.35  / A985