Young People's Science Encyclopedia Volume 12 

 - Chicago:  Children’s Press Inc,  1963. 
 - 90p.;  col.ill.  25cm 
 - Young People's Science Encyclopedia   Volume 12 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science Encyclopedia
<br/><br/><label>Dewey Class. No.: </label>503  / YOU