Ayres Frank <br/><br/>
Schaum's outline of theory and problems of differential equations in simetric units. 

 - New York     McGraw-Hill International Books      1972 
 - 295p  cm. 
 - Schaum's outline series. .
<br/><br/><label>Standard No.: </label>75346 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B33, L2