Roper, Lanning <br/><br/>
Hardy herbaceous plants 

 - Harmondsworth  Penguin Books  1960 
 - 223 
<br/><br/> Illus. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany<br/>Herbs<br/>Seeds
<br/><br/><label>Dewey Class. No.: </label>582.12  / R682h