@misc{Skarga_Piotr_(1536-1612)._Proba,
 author={Skarga, Piotr (1536-1612).},
 howpublished={online},
 publisher={Kraków ; W Drukarni Andrzeia Piotrowczyka},
 language={pol},
 type={stary druk},
 title={Proba Zakonu Societatis Iesu},
 keywords={jezuici ; publicystyka},
}