@misc{Brożek_Jan_(1585-1652)_Epistolae,
 author={Brożek, Jan (1585-1652)},
 howpublished={online},
 publisher={Drukarnia Andrzeja Piotrkowczyka},
 language={lat},
 title={Epistolae Ad naturam ordinatarum figurarum plenius intelligendam pertinentes},
 type={starodruk},
}