Usher, M B, Ed.; Williamson, M H, Ed. <br/><br/>
Ecological stability 

 -  Chapman & Hall Ltd., London  1974 
 - 196 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology; Biology
<br/><br/><label>Dewey Class. No.: </label>574.5  USH-E