Cite

Citation Info HGIS Germany (Andreas Kunz, Leonhard Dietze). IEG-Maps / Berlin Data Pool (Andreas Kunz, Robert Moeschl). Institut fur Europaische Geschichte (Mainz, Rhineland-Palatinate, Germany). Fachhochschule Mainz (Mainz, Rhineland-Palatinate, Germany). (2007). Germany State Boundaries, 1820, German Historical GIS. [Shapefile]. HGIS Germany. Retrieved from https://geo.nyu.edu/catalog/harvard-ghgis1820core

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