The value of birds.World Conference of the International Council for Bird preservation,19º
Diamond,A.W. and F.L.Filion
The value of birds.World Conference of the International Council for Bird preservation,19º - - Cambridge - INGL International Council of Bird Preservation 1987 - 267p. Lila 21cm - ICBP technical publication v.6 .
946888-10-8
--Aves--Avifauna--Ornitologia--Pajaros--Congresos--Preservacion--Conservacion--Ecologia--Recursos naturales--
Zoologia
The value of birds.World Conference of the International Council for Bird preservation,19º - - Cambridge - INGL International Council of Bird Preservation 1987 - 267p. Lila 21cm - ICBP technical publication v.6 .
946888-10-8
--Aves--Avifauna--Ornitologia--Pajaros--Congresos--Preservacion--Conservacion--Ecologia--Recursos naturales--
Zoologia