Kells, Lyman M. . <br/><br/>
Elementary Differential Equations /  Textual Documents 
Lyman M.Kells. 
 - 6th ed. / 
 - New York :  McGraw - Hill book company ,  C1960. 
 - xii,430p. :  ill ;  22cm . 
<br/><br/>Index 
<br/><br/><label>Subjects--Index Terms: </label>Differential Equations G-Mathematics 
<br/><br/><label>Dewey Class. No.: </label>517.38  / K 29 El