Pollock, Steve <br/><br/>
Ecology / 
written by Steve Pollock. 
 - London :  D. Kindersley,  c1993. 
 - 64 p. : col. ill. 
 - Eyewitness science ; 10 .
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology--Juvenile literature