Lipschutz, Seymour <br/><br/>
Theory and ploblems of general topology 

 - New York  McGraw-Hill Book Co.  1965 
 - 239 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Topology
<br/><br/><label>Dewey Class. No.: </label>514.322 L668t