@misc{_World,
 howpublished={online},
 publisher={IUCN – International Union for Conservation of Nature / Międzynarodowa Unia Ochrony Przyrody},
 language={eng},
 title={World Database on Protected Areas (WDPA)},
 type={strona popularnonaukowa},
 keywords={obszary chronione na świecie, UNEP World Conservation Monitoring Centre, World Database on Protected Areas, protected areas datasets, protected areas database, WDPA, WDPA Consortium, WDPA Download, 20 largest protected areas, WDPA datasets},
}