Zimmermann, Martin Huldrych. <br/><br/>
How sap moves in trees 

 - San Francisco :  Freeman,  1963 
 - 10 p.  : ilus. 
 - Scientific American Offprints  ; 154 .
 - Scientific American Offprints  ; 154 .
<br/><br/> "Reprinted from Scientific American, March 1963" 
<br/><br/><label>LCCN: </label>56538 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Savia--Circulación.