Vaidyanathaswamy, R. <br/><br/>
Set topology   
by R. Vaidyanathaswamy 
 - 2nd ed. 
 - Mineola  Dover Publications  1999 
 - viii,306p. 
<br/><br/><label>ISBN: </label>0486404560 
<br/><br/><label>Dewey Class. No.: </label>514.2  / N991