Kells, Lyman M.  1888- <br/><br/>
Elementary differential equations / 
[by] Lyman M. Kells. 
 - Sixth edition 
 - xii, 430 pages :  illustrations ;  24 cm. 
<br/><br/><label>LCCN: </label>64008278  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations.
<br/><br/><label>LC Class. No.: </label>QA371  / .K4 1965 
<br/><br/><label>Dewey Class. No.: </label>515.35