Lipschutz, Seymour <br/><br/>
Theory and Problems of General Topology 

 - New York  Schaum Publishing Co.  1965 
 - 239 
<br/><br/><label>Publisher. No.: </label> Navakarnataka 
<br/><br/><label>Subjects--Personal Names: </label> Mathematics 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics