@misc{_Śląsk_[ca, copyright={Public Domain}, address={[S.l.]}, address={(Chorzów)}, howpublished={online}, year={[ca 1938]}, publisher={[s.n.]}, publisher={(Drukarnia Planów E. Bryłka)}, language={pol}, title={Śląsk Zaolzański}, keywords={border regions, political-administrative maps, chorographic maps, state borders, Cieszyn, Ostrava, Cieszyn Silesia, Zaolzie}, }