Series of revisions of Apocynaceae. 

 - 60 p.  ill. 
 - Mededelingen Landbouwhogeschool Wageningen  83-7 .
<br/><br/>Parts XI-XIII 
<br/><br/><label>ISBN: </label>90-6754-054-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>582.937<br/>581.961<br/>58.082.13