Pollock, Steve <br/><br/>
Ekologi 

 - Petaling Jaya, Selangor  Sasbadi  1997 
 - 64 p. : ill. (some col.) ; 29 cm 
 - Saksi mata sains .
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9830296776