Columbia subject headings:
Harvard subject headings:
Bavaria (Germany)--Foreign relations--Bulgaria--Exhibitions.
Bavaria (Germany)--History--20th century--Exhibitions.
Bavaria (Germany)--Relations--Bulgaria--Exhibitions.
Bulgaria--Foreign relations--Germany--Bavaria--Exhibitions.
Bulgaria--History--20th century--Exhibitions.
Bulgaria--Relations--Germany--Bavaria--Exhibitions.
World War, 1914-1918--Bulgaria--Exhibitions.
World War, 1914-1918--Germany--Bavaria--Exhibitions.
Princeton subject headings:
Bavaria (Germany)--Foreign relations--Bulgaria--Exhibitions.
Bavaria (Germany)--History--20th century--Exhibitions.
Bavaria (Germany)--Relations--Bulgaria--Exhibitions.
Bulgaria--Foreign relations--Germany--Bavaria--Exhibitions.
Bulgaria--History--20th century--Exhibitions.
Bulgaria--Relations--Germany--Bavaria--Exhibitions.
World War, 1914-1918--Bulgaria--Exhibitions.
World War, 1914-1918--Germany--Bavaria--Exhibitions.