@misc{Sawicki_Ludwik_(1893–1972)_Muzeum,
 author={Sawicki, Ludwik (1893–1972)},
 volume={67},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 journal={Spuścizna prof. Ludwika Sawickiego : teczki archiwalne},
 howpublished={online},
 language={pol},
 title={Muzeum Narodowe w Warszawie : statut i uzasadnienie},
 type={Text},
 keywords={National Museum (Warsaw, Poland), National Museum -- organization, Museum statutes},
}