Puzzles In Math & Logic 
Aaron J. Friedland 
 - first 
 -  Rupa Publications India  1970 
 - 66 
<br/><br/><label>ISBN: </label>9780486323947 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Self Help
<br/><br/><label>Dewey Class. No.: </label>793.74  / FRI