@misc{_Acta_1968,
 volume={18},
 editor={Institute of History of the Polish Academy of Sciences},
 copyright={Rights Reserved - Restricted Access},
 address={Wrocław},
 journal={Acta Poloniae Historica},
 howpublished={online},
 year={1968},
 publisher={Zakład Narodowy im. Ossolińskich},
 language={eng},
 language={fre},
 title={Acta Poloniae Historica T. 18 (1968), Demography, Settlement = Démographie, Habitat},
 type={Text},
 keywords={Poland - history - periodicals},
}