Ferrar, W. L. (William Leonard), 1893-  Ferrar, W. L. (William Leonard), 1893- <br/><br/>
A text-book of convergence. 

 - Oxford :  Clarendon Press,  [1969] 
<br/><br/> First published in 1938. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Convergence.<br/>Series, Infinite.