FERRAR, W.L. <br/><br/>
A Text-Book of convergence / 
by W.L.Ferrar 
 - Oxford  Oxford at the Clarendon Press  1938 
 - vi, 192 p. 
<br/><br/> Includes appendix and index. 
<br/><br/><label>Dewey Class. No.: </label>515.24  / FER