@misc{Sawicki_Ludwik_(1893–1972)_Pieczyska,
 author={Sawicki, Ludwik (1893–1972)},
 volume={54},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 journal={Spuścizna prof. Ludwika Sawickiego : teczki archiwalne},
 howpublished={online},
 language={pol},
 title={Pieczyska},
 type={Text},
 URL={http://rcin.org.pl/Content/77681/PDF/WA308_90987_A-TA-LS-54-42_Pieczyska_I.pdf},
 keywords={archaeological sites -- Poland, Pieczyska, Chynów commune, Grójec county, mazowieckie voivodeship (Poland)},
}