Gardner, Martin <br/><br/>
Aha! a two volume collection : aha! gotcha, aha! insight 

 - 1st ed 
 - Washington, DC:  Mathematical Association of America,  2006 
 - xvii, 164, ix, 181 p. : ill. ; 25 cm 
<br/><br/><label>ISBN: </label>9780883855515 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical recreations
<br/><br/><label>Dewey Class. No.: </label>793.74 GAR