Search for: [Subject and Keywords = Zoological Institute of the Polish Academy of Sciences] OR [Subject and Keywords = field research] OR [Subject and Keywords = Instytut Zoologiczny Polskiej Akademii Nauk] OR [Subject and Keywords = badania terenowe] OR [Title = Badania terenowe cz.2] OR [Title = Badania terenowe cz.2] OR [Creator = Bielawski, Ryszard] OR [Creator = Bielawski, Ryszard]