@misc{_Kalendarium_1583,
 year={1583},
 rights={Domena publiczna (Public domain)},
 publisher={Januszowski, Jan (1550-1613)},
 description={Druk czerwono-czarny},
 language={lat},
 type={stary druk},
 title={Kalendarium Gregorianum Perpetuum},
 keywords={kalendarze - 16 w., kalendarz gregoriański},
}