Physiology of tree crops 
edited by L.C.Luckwill and C.V.Cutting 
 - London  Academic Press  1970 
 - 
<br/><br/> "Proceeding of a symposium held at Long Ashton Research Station University of Bristol 25-28 March 1969". 
<br/><br/><label>Dewey Class. No.: </label>581.5  / LUC