@misc{Robert_Bellarmin_(św._;_1542-1621)._De,
 author={Robert Bellarmin (św. ; 1542-1621).},
 howpublished={online},
 publisher={Ex Officina Plantiniana, Apud Balthasarem & Ioannem Moretos,},
 type={stary druk},
 title={De Æterna Felicitate Sanctorvm Libri Qvinqve : Ad Illustriss. & Reuerendiss. D. Cardinalem Farnesivm / Avctore Roberto Card. Bellarmino [...].},
}