Columbia subject headings:
Labor laws and legislation--Periodicals.
Labor laws and legislation--Poland--Periodicals.
Poland--Social policy--Periodicals.
Social legislation--Periodicals.
Social legislation--Poland--Periodicals.
Social policy--Periodicals.
Harvard subject headings:
Labor laws and legislation--Periodicals
Labor laws and legislation--Poland--Periodicals.
Poland--Social policy--Periodicals.
Social legislation--Periodicals.
Social legislation--Poland--Periodicals.
Social policy--Periodicals
Princeton subject headings: