Columbia subject headings:
Kraków (Poland)--Economic conditions.
Kraków (Poland)--Politics and government.
Riots--Poland--Kraków.
Working class--Poland--Kraków--History.
Harvard subject headings:
Kraków (Poland)--Economic conditions.
Kraków (Poland)--Politics and government.
Riots--Poland--Kraków.
Working class--Poland--Kraków--History.
Princeton subject headings:
Kraków--General strike, 1923.
Poland--Politics and government--1918-1945.