@misc{Gregorius_I_Magnus_Papa_s._Pastorale,,
 author={Gregorius I Magnus Papa s.},
 address={Strasburg},
 howpublished={online},
 publisher={[Typ.Iordani=Ge. Husner]},
 language={lat},
 title={Pastorale, sive Regula pastoralis},
 type={inkunabuł},
 keywords={Incunabula -- Poland -- Bydgoszcz -- Catalogs, Early printed books -- 15th century},
}