Exell, Arthur Wallis <br/><br/>
Supplement to the catalogue of the vascular plants of S. Tome:   With principe and annobon 

 - London:   British Museum,   1956 
 - 58p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Catalogue
<br/><br/><label>Universal Decimal Class. No.: </label>582