@misc{Jacobus_de_Gruytrode_Lavacrum,
 author={Jacobus de Gruytrode},
 address={Kolonia},
 howpublished={online},
 publisher={Quentell Heinrich},
 language={lat},
 type={postinkunabuł},
 title={Lavacrum conscientie},
 keywords={Incunabula -- Poland -- Bydgoszcz -- Catalogs, Early printed books -- 15th century},
}