Khanna, M L <br/><br/>
Elementary set theory 

 -  Jai Prakash Nath & Co., Meerut  1967 
 - 142 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sets; Mathematical logic; Mathematics
<br/><br/><label>Dewey Class. No.: </label>511.32  KHA-E