Columbia subject headings:
Harvard subject headings:
Fighter pilots--Germany--Biography
Germany. Luftwaffe. Nachtjagd-Division--Biography.
Lent, Helmut, 1918-1944.
World War, 1939-1945--Aerial operations, German.
Princeton subject headings:
Fighter pilots--Germany--Biography.
Germany. Luftwaffe. Nachtjagd-Division
Lent, Helmut, 1918-1944.
World War, 1939-1945--Aerial operations, German.