@misc{Sorsa_Michael_(1634-1679)_Officiosa,
 author={Sorsa, Michael (1634-1679)},
 howpublished={online},
 publisher={Drukarnia Jezuitów},
 language={pol},
 type={starodruk},
 title={Officiosa Pietatis Exercitia : Cultui Divino Magnæ Matris Mariæ, Sanctorumque Patronorum Debita : Variis Officii, Litaniis, Precibus, Et Affectibus Instructa [...]},
}