How to think 50 puzzles for logical thinking 
How to think 50 puzzles for logical thinking 
 -  "88 p ; 18 cm. : ill., pbk." 
 - Chennai  Emerald Publishers  2017 
<br/><br/><label>ISBN: </label>9788179662779 
<br/><br/><label>Dewey Class. No.: </label>793.73 PHIL  / 22.793.73 PHIL