Columbia subject headings:
Harvard subject headings:
Landesbühne Niedersachsen-Nord--History.
Theater--Germany--Wilhelmshaven--History--20th century.
Theater--Germany--Wilhelmshaven--History--21st century.
Princeton subject headings:
Landesbühne Niedersachsen-Nord--History.
Theater--Germany--Wilhelmshaven--History--20th century.
Theater--Germany--Wilhelmshaven--History--21st century.