@misc{_Geographia_1989,
 copyright={Rights Reserved - Free Access},
 address={Warszawa},
 journal={Geographia Polonica},
 howpublished={online},
 year={1989},
 publisher={IGiPZ PAN},
 language={eng},
 title={Geographia Polonica 57 (1989)},
 type={Text},
 URL={http://rcin.org.pl/igipz/Content/4200/PDF/WA51_13396_r1989-t57_Geogr-Polonica.pdf},
 keywords={Geography},
}