Spellenberg, Richard. <br/><br/>
The Audubon Society Field Guide to North American Wildflowers  : western region 

 - New York :  Knopf,  1990 [c.1979] 
 - 862 p.  : ilus. 
<br/><br/><label>LCCN: </label>5682 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Flores silvestres--E.U.A.<br/>Flores--E.U.A.<br/>Flores--Identificación.
<br/><br/><label>Dewey Class. No.: </label>581.463  / S6