Wilson, Helen Van Pelt. <br/><br/>
The new perennials preferend 

 - New York :  Barrows,  1961 
 - 320 p. 
<br/><br/><label>LCCN: </label>54330 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plantas ornamentales.
<br/><br/><label>Dewey Class. No.: </label>635.9  / W53 1961