Columbia subject headings:
Harvard subject headings:
Air pilots, Military--Poland--Biography.
Sylwestrowicz, Witold D. (Witold Dowoyna), 1909-1986.
World War, 1939-1945--Personal narratives, Polish.
Princeton subject headings:
Sylwestrowicz, Witold D. (Witold Dowoyna), 1909-1986.
World War, 1939-1945--Aerial operations, Polish.
World War, 1939-1945--Personal narratives, Polish.