Willard, Stephen <br/><br/>
General topology/ 
by Stephen Willard 
 - * Massachusetts  : Addison-Wesley publishing company  ,2004. 
 - xii+369p. 
<br/><br/><label>ISBN: </label>9780486322537 
<br/><br/><label>Dewey Class. No.: </label>514.3 WIL/G