Symposium of th British Ecological society,Cambridge 30th march-1April,1965.  <br/><br/>
Light as an ecological factor 
edited by G.Clifford Evans,and Oliver Rackhame 
 - Oxford  Blackwell Scientific Pub.  1966 
 - xi,452.;  24cm.- 
 - British Ecological society symposium; no.6 .
<br/><br/><label>Dewey Class. No.: </label>574.19153  / SYM