Columbia subject headings:
Harvard subject headings:
Air warfare--Social aspects--Germany--Congresses.
Air warfare--Social aspects--Great Britain--Congresses.
Submarine warfare--Social aspects--Germany--Congresses.
Submarine warfare--Social aspects--Great Britain--Congresses.
Women and the military--Germany--Congresses.
Women and the military--Great Britain--Congresses.
Women and war--Germany--Congresses.
Women and war--Great Britain--Congresses.
Princeton subject headings:
Air warfare--Mythology--Congresses.
Submarine warfare--Mythology--Congresses.
World War, 1914-1918--Aerial operations, British--Congresses.
World War, 1914-1918--Aerial operations, German--Congresses.
World War, 1914-1918--Naval operations, British--Congresses.
World War, 1914-1918--Naval operations--Submarine--Congresses.
World War, 1939-1945--Aerial operations, British--Congresses.
World War, 1939-1945--Aerial operations, German--Congresses.
World War, 1939-1945--Naval operations, British--Congresses.
World War, 1939-1945--Naval operations--Submarine--Congresses.