@misc{_Opvscvla,
 howpublished={online},
 publisher={Andrzej Piotrkowczyk},
 publisher={Melchior Stephanides},
 language={pol},
 language={lat},
 type={starodruk},
 title={Opvscvla tam Ecclesiastici, quam Equestris Ordinis, Nobilivm Virorvm Compositionis intet [sic!] Status Negotio Servientia},
 keywords={starodruki 17 w.},
}