Brecher, Erwin <br/><br/>
Challenging science puzzles / 
Erwin Brecher and Mike Gerrard 
 - New Delhi:  Goodwill Publishing House,  [date of publication not identified]. 
 - 95 pages:  illustrations ;  21 cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>9788172451110 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Problems, exercises, etc.
<br/><br/><label>Dewey Class. No.: </label>CIR 500 B829 [c?].