Townsend,Charles <br/><br/>
World's Trickest puzzles 

 - New Delhi  Orient Paperbacks  1998 
 - 127p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer/IT
<br/><br/><label>Dewey Class. No.: </label>793.73  / TOW/WOR