Thomas, G.S <br/><br/>
Perennial garden plants  or the modern florileguim 
Graham Stuart Thomas 
 - 3rd. ed 
 - London  J.M Dent  1990 
 - xvi, 463p,;  ill, Hbk,; 
<br/><br/><label>ISBN: </label>0460860488 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Perennials--dictionaries