Columbia subject headings:
Early maps--Congresses.
World maps--Early works to 1800--Congresses.
Harvard subject headings:
Early maps--Congresses.
Kloster Ebstorf (Germany)--Congresses.
World maps--Early works to 1800--Congresses.
Princeton subject headings:
Early maps--Congresses.
Ebstorfer Weltkarte--Congresses.
Geography, Medieval--Maps--Congresses.
World maps--Early works to 1800--Congresses.