Columbia subject headings:
Cartography--History.
Early maps.
Europe, Eastern--Maps.
Geography, Medieval--History.
Geography, Medieval--Maps.
Maps.
Harvard subject headings:
Cartography--History
Early maps.
Europe, Eastern--Maps.
Geography, Medieval--History.
Geography, Medieval--Maps.
Geography, Medieval.
Princeton subject headings:
Cartography--History.
Early maps.
Europe, Eastern--Maps.
Geography, Medieval--Maps.
Geography, Medieval.
Maps.