@misc{_Montisferrati,
 howpublished={online},
 publisher={Apud Guiljelmum Blaeuw},
 language={lat},
 title={Montisferrati Dvcatvs},
 type={mapa},
 keywords={mapa historyczna, miedzioryt, Piemont, "Montisferrati Ducatus", Włochy},
}