@misc{Visscher_Nicolaes_(1618–1679)_Limburgi_[ante,
 author={Visscher, Nicolaes (1618–1679)},
 copyright={Public Domain},
 address={[Amstelodami]},
 howpublished={online},
 year={[ante 1680]},
 publisher={[Nicolaes Visscher]},
 language={lat},
 title={Limburgi Ducatus et Comitatus Valckenburgi nova descripto},
 type={Image},
 URL={http://rcin.org.pl/Content/163285/PDF/WA51_191527_PANBKS446-12-r1680_Limburgi-Ducatus-et-_00000001.pdf},
 keywords={chorographic maps, Limburg (Belgium; province), Valkenburg (The Netherlands; region)},
}