@misc{_Opieka_1920, copyright={Public Domain}, address={Warszawa}, howpublished={online}, year={1920}, publisher={Ministerstwo Sztuki i Kultury}, language={pol}, title={Opieka nad zabytkami i ich konserwacja}, URL={http://www.rcin.org.pl/Content/5673/PDF/WA308_2418_II21549_OPIEKA-NAD-ZABYTKAMI_I.pdf}, keywords={protection of monuments, conservation of monuments and finds, architectural monuments, monuments of art, archaeological monuments}, }