Brecher, Erwin <br/><br/>
Challenging science puzzles / 
Erwin Brcher and Mike Gerrard 
 - New Delhi :  Goodwill Publishing House ,  20-? 
 - 95 p. :  ill, ;  22 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9788172451110 (pbk.)  Rs.50.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Experiments--Juvenile literature<br/>Science--Experiments<br/>Puzzles--Juvenile literature<br/>Science--Study and teaching--Activity programs
<br/><br/><label>Dewey Class. No.: </label>507.8