Columbia subject headings:
Plebiscite--Silesia, Upper (Poland and Czech Republic)--Bibliography.
Silesia, Upper (Poland and Czech Republic)--History--Partition, 1919-1921--Bibliography.
Harvard subject headings:
Plebiscite--Silesia, Upper (Poland and Czech Republic)--Bibliography.
Silesia, Upper (Poland and Czech Republic)--History--Partition, 1919-1922--Bibliography.
Princeton subject headings:
Plebiscite--Silesia, Upper (Poland and Czech Republic)--Bibliography.
Silesia, Upper (Poland and Czech Republic)--History--Partition, 1919-1921--Bibliography.