@misc{_Plan_1939, copyright={Public Domain}, address={[Warszawa}, address={(Warszawa)}, howpublished={online}, year={1939}, publisher={[s.n.]}, publisher={(Lit. Art. W. Główczewski)}, language={pol}, title={Plan sieci tramwajów i autobusów m. st. Warszawy}, type={Image}, keywords={street maps, Warsaw street maps, Warsaw, maps of public transport, 20th century}, }