Willis, Edwin O., <br/><br/>
A revised list of birds of Barro Colorado Island, Panama / 
Edwin O. Willis and Eugene Eisenmann. 
 - City of Washington :  Smithsonian Institution Press,  1979. 
 - 31 pages ;  27 cm. 
 - Smithsonian contributions to zoology  no. 291 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birds--Panama--Barro Colorado Island--Classification.