Spilsbury, Richard. <br/><br/>
Grassland food chains / 
by Richard and Louise Spilsbury. 
 - Oxford :  Heinemann Library,  2005. 
 - 32 p. :  ill., photo., col ;  25 cm. 
 - Food Chains and Webs. Heinemann Infosearch. .
 - Food Chains and Webs. Heinemann Infosearch. .
<br/><br/> Includes glossary.  Includes index. 
<br/><br/><label>ISBN: </label>0431119058 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology.<br/>Food chains (Ecology).<br/>Grassland ecology.
<br/><br/><label>Dewey Class. No.: </label>577.4