Diamond,A.W. and F.L.Filion <br/><br/>
The value of birds.World Conference of the International Council for Bird preservation,19º 

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 - Cambridge - INGL  International Council of Bird Preservation  1987 
 - 267p.  Lila 21cm 
 - ICBP technical publication  v.6 .
<br/><br/><label>ISBN: </label>946888-10-8 
<br/><br/><label>Subjects--Topical Terms: </label>--Aves--Avifauna--Ornitologia--Pajaros--Congresos--Preservacion--Conservacion--Ecologia--Recursos naturales--<br/>Zoologia