Peterson, Ivars,  <br/><br/>
Math trek :   adventures in the Mathzone 

 - vii, 116 pages :   illustrations ;   26 cm 
<br/><br/> Includes bibliographical references (p. 109-111) and index 
<br/><br/><label>ISBN: </label>0471315702 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical recreations - Juvenile literature
<br/><br/><label>Dewey Class. No.: </label>793.74