@misc{Józefik_Mieczysław_(1930–_)_Zbigniew_[1959],
 author={Józefik, Mieczysław (1930– )},
 copyright={Public Domain},
 howpublished={online},
 year={[1959]},
 title={Zbigniew Swirski},
 type={Image},
 URL={http://www.rcin.org.pl/Content/153265/PDF/WA058_161220_Swirski-Zbigniew_P517.pdf},
 keywords={Swirski, Zbigniew (1926- ), zoologists, ornitologists, academics, biologists - Poland - biography},
}