Gardner, Martin. <br/><br/>
Science Puzzlers /  
Illustrated by Anthony Ravielli. 
 - London :   Macmillan & Co Ltd.. 
 - 123p :  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural Science <Science Puzzle>
<br/><br/><label>Dewey Class. No.: </label>Ax  / J7G,J9