Columbia subject headings:
Gays--Nazi persecution--Europe.
Homosexuality--Europe--History--20th century.
World War, 1939-1945--Europe.
Harvard subject headings:
Gays--Nazi persecution--Europe.
Homosexuality--Europe--History--20th century.
World War, 1939-1945--Europe.
Princeton subject headings:
Gays--Nazi persecution--Europe.
Homosexuality--Europe--History--20th century.
World War, 1939-1945--Europe.