@misc{Blaeu_Willem_Janszoon_(1571-1638)_Polonia_[1635],
 author={Blaeu, Willem Janszoon (1571-1638)},
 copyright={Copyright by Uniwersytet Wrocławski},
 copyright={University of Wroclaw},
 address={Amsterdam},
 howpublished={online},
 year={[1635]},
 publisher={Willem Janszoon Blaeu},
 title={Polonia Regnum, et Silesia Ducatus},
 keywords={17 w., Królestwo Polskie, Księstwo Śląskie, mapa ogólnogeograficzna},
}