Enciclopedia ilustrada de las aves / 
director de la obra Dr. Christopher M. Perrins. 
 -  Headline,  1990. 
 - 420 páginas  
<br/><br/><label>ISBN: </label>848785303x 
<br/><br/><label>Nat. Bib. No.: </label>GB9017490  bnb 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birds.<br/>Birds<br/>Oiseaux.<br/>Birds<br/>Oiseaux--Encyclopédies.<br/>Oiseaux--Ouvrages illustrés.
<br/><br/><label>Subjects--Index Terms: </label>Birds 
<br/><br/><label>Index Terms--Genre/Form: </label><br/>encyclopedias.<br/>Encyclopedias.<br/>Encyclopédies.
<br/><br/><label>Dewey Class. No.: </label>598