@misc{_Directorium,
 address={[S.l.]},
 howpublished={online},
 publisher={[s.n.]},
 language={lat},
 title={Directorium seu Ordo Recitandi Horas Canonicas et Missas Celebrandi [...]},
 keywords={18 w., jezuici, Kościół katolicki, obrzędy, Śląsk},
}