Columbia subject headings:
Harvard subject headings:
Gays--Nazi persecution
Genocide--Germany--History--20th century.
Holocaust, Jewish (1939-1945)
Jehovah's Witnesses--Nazi persecution
National socialism.
People with disabilities--Nazi persecution
Romani Genocide, 1939-1945
Princeton subject headings:
Gays--Nazi persecution.
Genocide--Germany--History--20th century.
Jehovah's Witnesses--Nazi persecution.
National socialism.
People with disabilities--Nazi persecution.
Romani Genocide, 1939-1945.