Carona, Philip B. <br/><br/>
Our planet earth / 
by Philip B. Carona ; illustrated by Alex Ebel 
 - London :  University of London,  1969 
 - 28 p. :  col. ill. ;  21 cm. 
 - Dolphin science books .
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Earth--Juvenile literature
<br/><br/><label>Dewey Class. No.: </label>551.1