@misc{Spiegel_Adriaan_van_de_(1578-1625)_Opervm,
 author={Spiegel, Adriaan van de (1578-1625)},
 howpublished={online},
 publisher={Joan Blaeu},
 language={lat},
 type={starodruk},
 title={Opervm Quæ extant omnium Tomus [...]. T. 2},
 keywords={starodruki 17 w.},
}