Columbia subject headings:
Harvard subject headings:
Intelligence officers--Germany--Biography.
Poretschkin, Theodor, 1913-2006
World War, 1939-1945--Germany--Biography.
Princeton subject headings:
Autobiographies.
Intelligence officers--Germany--Biography.
Poretschkin, Theodor, 1913-2006.
World War, 1939-1945--Germany--Biography.