Columbia subject headings:
Harvard subject headings:
Bielsk Płocki (Poland)--Ethnic relations.
Jews--Poland--Bielsk Płocki--History.
Princeton subject headings:
Bielsk Podlaski (Poland)--Ethnic relations.
Bielsk Podlaski (Poland)--History.
Holocuast, Jewish (1939-1945)--Poland--Bielsk Podlaski.
Jews--Poland--Bielsk Podlaski--History.