Ayres,Frank  <br/><br/>
Theory And Problems Of Diffrential Equations  
by Frank Ayres 
 - New York   Schaum Publishing Co.   1952  
 - 296p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics 
<br/><br/><label>Dewey Class. No.: </label>510  / AYR