Columbia subject headings:
Germany (East)--Economic policy.
Informal sector (Economics)--Germany (East)
Informal sector (Economics)--Poland.
Poland--Economic policy--1945-1981.
Small business--Germany (East)
Small business--Poland.
Harvard subject headings:
Germany (East)--Economic policy.
Informal sector (Economics)--Germany (East)
Informal sector (Economics)--Poland.
Poland--Economic policy--1945-1955
Small business--Germany (East)
Small business--Poland.
Princeton subject headings:
Germany (East)--Economic policy.
Informal sector (Economics)--Germany (East).
Informal sector (Economics)--Poland.
Poland--Economic policy--1945-1981.
Poland--Economic policy--1981-1990.
Small business--Germany (East)
Small business--Poland.