Ferrar, W. L. <br/><br/>
A text-book of convergence / 
W. L. Ferrar. 
 - Oxford :  Oxford University Press,  1963. 
 - 192 pages ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sequences (Mathematics).<br/>Series.<br/>Convergence.