@misc{Maternicki_Jerzy_(1935–_)_Niektóre_1971,
 author={Maternicki, Jerzy (1935– )},
 volume={15},
 editor={Institute of History of the Polish Academy of Sciences},
 copyright={Rights Reserved - Free Access},
 journal={Studia Źródłoznawcze},
 address={Warszawa ; Poznań},
 howpublished={online},
 year={1971},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={pol},
 title={Niektóre problemy teorii i metodologii historii},
 type={Text},
 URL={http://rcin.org.pl./Content/28490/PDF/WA303_39971_B88-SZ-R-15-1970_Maternicki.pdf},
 keywords={history - methodology},
}