Columbia subject headings:
Archives--Germany--Gaesdonck.
Kloster Gaesdonck--History--Sources.
Monasteries--Germany--Gaesdonck--History--Sources.
Harvard subject headings:
Collegium Augustinianum Gaesdonck--Archives--Catalogs.
Family archives--Germany--Goch--Catalogs.
Goch (Germany)--History--Sources--Bibliography--Catalogs.
Kloster Gaesdonck--Archives--Catalogs.
Princeton subject headings: