@misc{Kromer_Marcin_(1512-1589)_Polonia,
 author={Kromer, Marcin (1512-1589)},
 howpublished={online},
 publisher={Cholinus, Maternus (ca 1525-1588). Druk.},
 language={lat},
 type={stary druk},
 title={Polonia Siue De Sitv, Popvlis, Moribvs, Magistratibus, & Republica regni Polonici libri duo},
}