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

 - New York :  Schaum,  1952 
 - 296 p 
 - Schaum's outline series .
 - Schaum's outline series .
<br/><br/><label>LCCN: </label>23192 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecuaciones diferenciales.
<br/><br/><label>Dewey Class. No.: </label>517.38  / A97