Pyle, Robert Michael. <br/><br/>
The Audubon Society Field Guide to North American Butterflies 

 - New York :  Knopf,  1990 [c.1981] 
 - 924 p.  : ilus. 
 - The Audubon Society field guide series .
 - The Audubon Society field guide series .
<br/><br/> 59-224 
<br/><br/><label>LCCN: </label>5832 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mariposas--E.U.A.
<br/><br/><label>Dewey Class. No.: </label>595.789  / P9