Series of revisions of Apocynaceae 

 - 83 p. 
 - Agricultural university Wageningen. Papers  85-2 .
<br/><br/>XVI-XVIII 
<br/><br/><label>ISBN: </label>90-6754-064-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>582.937<br/>581.961