Lipschutz, Seymour <br/><br/>
Schaum's outline series of theory and problems: General topology 

 -  McGraw-Hill Book Co., Singapore  1965 
 - 238 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Topology; Mathematics
<br/><br/><label>Dewey Class. No.: </label>514  LIP-S