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

 - London  Chapman and Hall  1974 
 - xii, 196 p.; 23cm. 
<br/><br/><label>ISBN: </label>412186109 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology, biology<br/>Tropical level