Columbia subject headings:
Harvard subject headings:
France combattante. Bureau central de renseignements et d'action.
Great Britain. Special Operations Executive
Radio operators--Pictorial works.
Radio operators--Training of--Great Britain.
Radio--Receivers and reception--Pictorial works.
Radio--Transmitter-receivers--Pictorial works.
Telegraph, Wireless--Equipment and supplies--Pictorial works.
United States. Office of Strategic Services.
World War, 1939-1945--Communications.
World War, 1939-1945--Military intelligence--Pictorial works.
World War, 1939-1945--Underground movements--France.
World War, 1939-1945--Underground movements--Pictorial works.
Princeton subject headings:
France combattante. Bureau central de renseignements et d'action
Great Britain. Special Operations Executive
Radio operators--Training of--Great Britain.
Radio--Receivers and reception--Pictorial works.
Radio--Transmitter-receivers--Pictorial works.
United States. Office of Strategic Services
World War, 1939-1945--Communications.
World War, 1939-1945--Underground movements--France.