@misc{Ihnatowicz_Ireneusz_(1928–2001)_Źródła_1974,
 author={Ihnatowicz, Ireneusz (1928–2001)},
 volume={19},
 editor={Institute of History of the Polish Academy of Sciences},
 copyright={Rights Reserved - Free Access},
 address={Warszawa ; Poznań},
 journal={Studia Źródłoznawcze},
 howpublished={online},
 year={1974},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={pol},
 type={Text},
 title={Źródła do historii XIX i XX wieku},
 URL={http://www.rcin.org.pl/Content/29768/PDF/WA303_40502_B88-SZ-R-19-1974_Ihnatowicz.pdf},
 keywords={history - sources, history - 19th c. - sources, history - 20th c. - sources, Historiography [KABA], methodology of history},
}