Hovanec, Helene <br/><br/>
Science puzzles for young Einsteins 

 - New Delhi  Orient   2000 
 - 119 
<br/><br/><label>Subjects--Topical Terms: </label><br/>puzzles,young,Einsteins
<br/><br/><label>Dewey Class. No.: </label>793.73  HOV1;1  R