Zimmermann M.H <br/><br/>
Encyclopedia of Plant Physiology New Series Vol-1  Transport in Plants I Phloem Tranport 
/ by M.H Zimmermann 
 - New York  Springer Verlag  1975 
 - 535p. 
<br/><br/><label>ISBN: </label>3540073140 
<br/><br/><label>Dewey Class. No.: </label>582.041  / ZIM/T