Steen, Lynn Arthur <br/><br/>
Counterexamples in topology 

 - New York  Dover Publications, INC.  1995 
 - xi, 244p 
<br/><br/> Index included  
<br/><br/><label>ISBN: </label>048668735X 
<br/><br/><label>Universal Decimal Class. No.: </label>515.1  / S72