FORD Lester R. <br/><br/>
Differential equations. 
FORD Lester R. 
 - New York  Mc- Graw- Hill         1955 
 - xii,291p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>B33, J5/SC