Ayres, Frank, <br/><br/>
Schaum's outline of theory and problem of differential equations / 
by Frank Ayres. 
 - first ed. 
 - New York :  McGraw-Hill,  1972. 
 - vi, 296 pages :  illustration ;  28 cm. 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0070026548 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations