Clessa, J.J. <br/><br/>
Math and logic puzzles for PC enthusiasts / 
J.J. Clessa. 
 - 1a ed. 
 - New York :  Dover Publications, Inc.,  c1996 
 - 131 p. :   il. ;  21 cm. 
 - Dover books on mathematical & logical puzzles, cryptography, and word recreations .
<br/><br/><label>ISBN: </label>0486291928 
<br/><br/><label>Subjects--Topical Terms: </label><br/>matemáticas recreativas
<br/><br/><label>LC Class. No.: </label>QA95   / C54 1996