@misc{Żelaźniewicz_L._30,
 author={Żelaźniewicz, L.},
 howpublished={online},
 publisher={KAW},
 publisher={PZGraf. Wrocław},
 language={pol},
 title={30 lat PZPR. 1948 – 1978.},
 type={plakat},
 keywords={afisze i plakaty},
}