@misc{_Geographia_1975,
 copyright={Rights Reserved - Free Access},
 address={Warszawa},
 journal={Geographia Polonica},
 howpublished={online},
 year={1975},
 publisher={IGiPZ PAN},
 language={eng},
 type={Text},
 title={Geographia Polonica 30 (1975)},
 URL={http://www.rcin.org.pl/igipz/Content/4228/PDF/Wa51_13447_r1975-t30_Geogr-Polonica.pdf},
 keywords={Geography},
}