@misc{Pieczyński_Eligiusz_Institute_1977,
 author={Pieczyński, Eligiusz},
 volume={25},
 editor={Polska Akademia Nauk. Instytut Ekologii},
 number={4},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Warszawa},
 journal={Ekologia Polska},
 howpublished={online},
 year={1977},
 publisher={Polish Scientific Publishers},
 language={eng},
 type={Text},
 title={Institute of Ecology, Polish Academy of Sciences - 25 years of activities (1952-1977)},
 URL={http://rcin.org.pl/Content/74579/PDF/WA058_86937_P2840-T25_Eko-Pol-A-Nr-4.pdf},
 keywords={Polish Academy of Sciences. Institute of Ecology, history, organization},
}