@misc{Luniak_Maciej_(1936–_)_Ptaki_1981,
 author={Luniak, Maciej (1936– ) and Państwowe Wydawnictwo Naukowe (1951–1992) and Polska Akademia Nauk. Instytut Zoologii},
 volume={26},
 number={31},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 journal={Fragmenta Faunistica},
 address={Warszawa},
 address={Wrocław},
 howpublished={online},
 year={1981},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={pol},
 title={Ptaki (Aves)},
 type={Text},
 URL={http://rcin.org.pl/miiz/Content/50899/PDF/WA058_56046_P256-T26_Frag-Faun-Nr-31.pdf},
 keywords={birds, Aves, man's impact, ecology, Białołęka Dworska, Warsaw, Poland, effect of human beings},
}