Cragg, J B, Ed. <br/><br/>
Advances in ecological research, Vol.1 

 -  Academic press., London  1962 
 - 203 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology; Biology
<br/><br/><label>Dewey Class. No.: </label>574.5  CRA-A.1