Frank Ayres <br/><br/>
Theory and problems of differential equations in si metric unit / 
Frank Ayres 
 -  Mcgraw Hill International Book Com. New York 
 - 295 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>515.35  / AYRS