Seidenberg, Steven. <br/><br/>
Ecology and conservation / 
Steven Seidenberg. 
 - London :  Belitha Press,  1990. 
 - 64 p. :  col. ill. 
 - Belitha information library .
<br/><br/><label>ISBN: </label>1855610108 
<br/><br/><label>LCCN: </label>91026269       
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology--Juvenile literature.<br/>Nature conservation--Juvenile literature.<br/>Pollution--Environmental aspects--Juvenile literature.<br/>Biosphere--Juvenile literature.<br/>Ecology.<br/>Nature conservation.<br/>Pollution--Environmental aspects.<br/>Biosphere.