Columbia subject headings:
Harvard subject headings:
Aerial observation (Military science)--United States--History--20th century.
Reconnaissance aircraft--United States.
United States. Navy
World War, 1939-1945--Aerial operations, American.
World War, 1939-1945--Naval operations, American.
World War, 1939-1945--Personal narratives, American.
World War, 1939-1945--Reconnaissance operations.
Princeton subject headings:
Aerial observation (Military science)--United States--History--20th century.
Reconnaissance aircraft--United States.
World War, 1939-1945--Aerial operations, American.
World War, 1939-1945--Naval operations, American.