Ayres, Frank, 1901-  Ayres, Frank, 1901- <br/><br/>
Schaum's outline of theory and problems of differntial equations in SI metric units. 

 - New York :  McGraw-Hill,  [1972] 
 - Schaum's outline series .
<br/><br/> "Including over 1900 fully solved problems." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations -- Problems, exercises, etc.--Differential equations -- Problems, exercises, etc.