Searle, Graham. <br/><br/>
Project Earth; 
with an introduction by Kenneth Allsop. 
 - London,  Wolfe,  1973. 
<br/><br/><label>ISBN: </label>072340481X  L.2.00 
<br/><br/><label>LCCN: </label>73173565 
<br/><br/><label>Nat. Bib. No.: </label>GB73-11410 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology -- Juvenile literature.--Ecology -- Juvenile literature.<br/>Environmental protection -- Juvenile literature.--Environmental protection -- Juvenile literature.
<br/><br/><label>LC Class. No.: </label>HC 55 SEA 
<br/><br/><label>Dewey Class. No.: </label>333.7/2/09931