Leonard, Jonathan N. <br/><br/>
Exploring science / 
by Jonathan N. Leonard ; illustrated by Louis Darling and I. N. Steinberg 
 - London :  Odhams Press,  1961 
 - 312 p. :  ill. ;  29 cm. 
 - A Rainbow book .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Juvenile literature<br/>Science--Juvenile literature
<br/><br/><label>Dewey Class. No.: </label>557