Luer, Carlyle A. <br/><br/>
THe native orchids of the United States and Canada  : excluding Florida 

 - (New York) :  New York Botanical Garden,  1975 
 - 361 p.  : ilus. 
<br/><br/><label>LCCN: </label>34207 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Orquidáceas.
<br/><br/><label>Dewey Class. No.: </label>584.15  / L84