@misc{Wątroba_Stefan_1,
 author={Wątroba, Stefan},
 address={Katowice},
 howpublished={online},
 publisher={WAG :},
 publisher={RSW "Prasa-Książka-Ruch"},
 language={pol},
 type={plakat},
 title={1 maja},
 keywords={Plakaty - Polska - 1945-},
}