Earth and universe / 
by John A. Clark ... [et al.] 
 - London :  Longmans,  1960 
 - 96 p. :  ill. ;  24 cm. 
 - Science on the March unitten .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth sciences--Juvenile literature<br/>Astronomy--Juvenile literature
<br/><br/><label>Dewey Class. No.: </label>520