@misc{_Geographia_1973,
 editor={Marble, Duane F. Ed.},
 editor={Chojnicki, Zbyszko. Ed.},
 copyright={Rights Reserved - Free Access},
 address={Warszawa},
 journal={Geographia Polonica},
 howpublished={online},
 year={1973},
 publisher={IGiPZ PAN},
 language={eng},
 title={Geographia Polonica 25 (1973)},
 type={Text},
 URL={http://www.rcin.org.pl/igipz/Content/4503/PDF/Wa51_13454_r1973-t25_Geogr-Polonica.pdf},
 keywords={Geography},
}