Columbia subject headings:
Poland--Politics and government--1918-1945.
Statesmen--Poland--Biography.
Sławek, Walery, 1879-1939.
Harvard subject headings:
Poland--Politics and government--1918-1945
Statesmen--Poland--Biography.
Sławek, Walery, 1879-1939.
Princeton subject headings:
Prime ministers--Poland--Biography.
Statesmen--Poland--Biography.
Sławek, Walery, 1879-1939.