Lipschutz, Seymour.  <br/><br/>
Theory and problems of general topolog:   including 650 solved problems / 

 - Singapore,   McGraw Hill International Book Company,  c1981. 
 - 239p. ;  ill. ;  26 cm.  
<br/><br/><label>ISBN: </label>007990115 
<br/><br/><label>LC Class. No.: </label>938 
<br/><br/><label>Dewey Class. No.: </label>15212