Gardner, Martin <br/><br/>
Aha! Aha! insight 
Martin Gardner ; [framed drawings by Jim Glen, diagrs. by Felix Cooper]. 
 - New York  Scientific American  c1978. 
 - viii, 179 p.  ill.  24 cm. 
<br/><br/>Bibliography: p. 171-173. 
<br/><br/><label>ISBN: </label>0894540017 
<br/><br/><label>LCCN: </label>78051259  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical recreations.<br/>Problem Solving<br/>Puzzles.
<br/><br/><label>LC Class. No.: </label>QA95  / .G23 
<br/><br/><label>Dewey Class. No.: </label>793.7/4