@misc{Łaski_Jan_(1499-1560)_Epistolae,
 author={Łaski, Jan (1499-1560)},
 howpublished={online},
 publisher={Johann Oporinus},
 language={lat},
 title={Epistolae tres lectu dignissimæ, De Recta Et Legitima Ecclesiarvm Bene instituendarum ratione ac modo: Ad Potentiss[imum] Regem Poloniæ, Senatum, reliquosq[ue] Ordines},
 type={starodruk},
}