Navarra, John Gabriel. <br/><br/>
Now you do it :    experiments and observations in pictures /  
J. G. Navarra and Joseph Zafforoni. 
 - New York :    Harper & Row,    1968. 
 - 102 p. :    ill. ;    23 cm. 
 - Today's basic science. .
<br/><br/><label>Subjects--Topical Terms: </label><br/> Pictures.
<br/><br/><label>Dewey Class. No.: </label>371.3352