@misc{Lafrery_Antoine_Speculum,
 author={Lafrery, Antoine},
 address={Romae},
 howpublished={online},
 language={lat},
 title={Speculum Romae magnificentiae […]},
 keywords={Kolekcje Piastowskie, 16 w., miedzioryty, Bibliotheca Rudolphina},
}