Burns, John M. <br/><br/>
Evolution in skipper butterflies of the genus Erynnis 

 - Berkeley :  University of California,  1964 
 - 216 p.  : ilus. ; mapas 
 - University of California publications in entomology  ; 37 .
 - University of California publications in entomology  ; 37 .
<br/><br/><label>LCCN: </label>26144 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hespiriidae.
<br/><br/><label>Dewey Class. No.: </label>595.789  / B8