Riley, Denis.  1913- <br/><br/>
World vegetation / 
by Denis Riley and Anthony Young. 
 - London :  Cambridge U.P.,  c1966 [Reprintrd 1968] 
 - 96 p. :  ill. ;  25 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label> 11/6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Phytogeography.<br/>Plant ecology
<br/><br/><label>Dewey Class. No.: </label>581.9  / RIW 1968