Levy, Azriel <br/><br/>
Basic Set Theory 
/by Ariel Levy 
 - New York:  Springer-Verlag;  1979. 
 - 391p. 
<br/><br/><label>ISBN: </label>3-540-08417-7 
<br/><br/><label>Dewey Class. No.: </label>511.8  / LEV/B