Piaggio, H T H <br/><br/>
Elementary differential equations and their applications 

 -  G Bell & Sons Ltd., London  1949 
 - 256 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations; Analysis; Mathematics
<br/><br/><label>Dewey Class. No.: </label>515.35  PIA-E