Columbia subject headings:
Mainz Region (Rhineland-Palatinate, Germany)--History.
World War, 1939-1945--Aerial operations.
World War, 1939-1945--Campaigns--Germany--Mainz Region (Rhineland-Palatinate)
Harvard subject headings:
Mainz Region (Rhineland-Palatinate, Germany)--History.
World War, 1939-1945--Aerial operations
World War, 1939-1945--Campaigns--Germany (West)--Mainz Region (Rhineland-Palatinate)
Princeton subject headings:
Mainz Region (Germany)--History--20th century.
World War, 1939-1945--Aerial operations, American.
World War, 1939-1945--Aerial operations, British.
World War, 1939-1945--Germany (West)--Mainz Region.