LEIGHTON, Walter <br/><br/>
A First Course In Ordinary Differential Equations 

 - Belmont,California  Wadsworth Publishing Company,  Inc        1976 
 - 253p. 
<br/><br/><label>ISBN: </label>0-534-00435-0 
<br/><br/><label>Dewey Class. No.: </label>515.3