Calow Peter Ed. <br/><br/>
Blackwell's concise encyclopedia of ecology. 

 -  1999 
<br/><br/><label>Standard No.: </label>71931 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>G:5k, N9             RR