@misc{Ricoldo_da_Monte_Croce_(1242?-1320)_Improbatio,
 author={Ricoldo da Monte Croce (1242?-1320)},
 address={[Rzym]},
 howpublished={online},
 publisher={[s.n.]},
 language={lat},
 type={inkunabuł},
 title={Improbatio Alcorani},
}