Duncalf, William G. <br/><br/>
The Guinness book of plant :  facts and feats / 
William G. Duncalf ; Line illustrations Christine Darter 
 - London :  Guinness Superlatives,  c1976 
 - 204 p. ;  24 cm. 
<br/><br/>Bibliography : p. 199-200 
<br/><br/><label>ISBN: </label>0900424257 :  PND 5.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant physiology
<br/><br/><label>Dewey Class. No.: </label>581.1