@misc{Radziwiłł_Janusz_(1579-1620)_Sermo,
 author={Radziwiłł, Janusz (1579-1620)},
 howpublished={online},
 publisher={[s.n.]},
 language={lat},
 type={stary druk},
 title={Sermo Illustriss. Principis Dn. Dn. Janussii Radziwili Ducis in Birze, Dubinki, Slucko & Kopyl, &c. &c. M. D. L. Supremi Pocillat. Svb Conclvsionem General. Comitorvm Ad Sacr. Reg. Majestatem In Freqventi Senatu Warszawiæ Habitus},
}