@misc{_Acta_1989, volume={25}, editor={Polska Akademia Nauk. Instytut Zoologii}, number={3}, copyright={Rights Reserved - Free Access}, address={Warszawa}, journal={Acta Ornithologica}, howpublished={online}, year={1989}, publisher={Państwowe Wydawnictwo Naukowe}, language={eng}, language={pol}, language={rus}, title={Acta Ornithologica ; vol. 25, no 3 - Spis treści}, type={Text}, URL={http://rcin.org.pl/miiz/Content/42392/PDF/WA058_59174_P257-T25_Acta-Ornith-Nr-3-sp.pdf}, keywords={Poland, birds, periodicals, ornithology}, }