Halmos Paul R <br/><br/>
Naive set theory 

 -  1960 
 - University Series in Under-Graduate Mathematics ed by John L Kelley and Paul R Halmos,6 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra
<br/><br/><label>Dewey Class. No.: </label>B217, KO