Hansen, Richard. <br/><br/>
Perennials and their garden habitats 

 - 4 ed. 
 - Portland, Oregon :  Timber Press,  1993 
 - 450 p.  : ilus. ; láms. 
<br/><br/><label>LCCN: </label>40935 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Habitat.<br/>Plantas ornamentales.<br/>Plantas perennes.
<br/><br/><label>Dewey Class. No.: </label>635.932  / H3 1993