Hillis, W.E. <br/><br/>
Heartwood and tree exudates  W.E. Hillis. 

 - Berlin  SpringerVerlag  1987 
 - vii, 208p., ill. 25cm. 
<br/><br/><label>ISBN: </label>3540-17593-8. 
<br/><br/><label>Dewey Class. No.: </label>581.17,  / H65H