Ayres, Frank, 1901-  Ayres, Frank, 1901- <br/><br/>
Schaum's outline of theory and problems of differential equations / 
by Frank Ayres. 
 - New York, NY :  Schaum,  c1952. 
 - Schaum's outline series .
<br/><br/> "Including 560 solved problems, completely solved in detail." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations -- Problems, exercises, etc.--Differential equations -- Problems, exercises, etc.