Columbia subject headings:
Harvard subject headings:
Political persecution--Poland--Strzelce Opolskie--History--20th century.
Political prisoners--Poland--Strzelce Opolskie--History--20th century.
Prisons--Poland--Strzelce Opolskie--History--20th century.
Strzelce Opolskie (Poland)--History--20th century.
Princeton subject headings:
Political prisoners--Poland--Strzelce Opolskie--Biography.
Political prisoners--Poland--Strzelce Opolskie--History--20th century.
Prisons--Poland--Strzelce Opolskie--History--20th century.
Strzelce Opolskie (Poland)--History--20th century.