Columbia subject headings:
Early maps--Germany--Schermbeck--Bibliography--Catalogs.
Gemeindearchiv Schermbeck--Map collections--Catalogs.
North Rhine-Westphalia (Germany)--Maps--Early works to 1800--Bibliography--Catalogs.
Harvard subject headings:
Cartographic materials--Germany--North Rhine-Westphalia--Catalogs.
Cartography--Germany--North Rhine-Westphalia--Archival resources.
Gemeindearchiv Schermbeck--Maps--Catalogs.
North Rhine-Westphalia (Germany)--Historical geography--Maps.
North Rhine-Westphalia (Germany)--Maps--Early works to 1800.
North Rhine-Westphalia (Germany)--Maps.
Princeton subject headings: