Kells, Lyman M.  1888- <br/><br/>
Calculus / 
Lyman M. Kells. 
 - 2d ed. 
 - London :  Allen & Unwin,  1949  [Printing 1960]. 
 - 508 p.  illus.  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Calculus.
<br/><br/><label>Dewey Class. No.: </label>515  / KEC 1960