Lucas, Gren <br/><br/>
The IUCN plant red data book 

 - Switzerland  IUCN  1978 
 - [2],540 p 
 - International Union for Conservation of Nature and Natural Resources .
<br/><br/><label>Subjects--Topical Terms: </label><br/>BOTANY
<br/><br/><label>Dewey Class. No.: </label>581  / LUC