Kells, Lyman M. <br/><br/>
Elementary differential equations/ 
Lyman M. Kells 
 - Japan :   Mc-Grow-hill Kogakusha, ltd.,   c1965. 
 - xii 430 p. ;   22 cm. 
<br/><br/>Include index. 
<br/><br/><label>Dewey Class. No.: </label>Circ. 515.35 K294 1965