Encyclopedia of birds / 
edited by Christopher M. Perrins and Alex. L.A. Middleton. 
 - New York, N.Y. :  Facts on File,  1985. 
 - xxxi, 445 p. :  ill. (some col.) 
<br/><br/> "A Equinox book"--T.p. verso. 
<br/><br/><label>ISBN: </label>0816011508 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birds.
<br/><br/><label>LC Class. No.: </label>QL673  / .E53 1985 
<br/><br/><label>Dewey Class. No.: </label>598�19