Columbia subject headings:
Belgium--Economic conditions--1945---Periodicals.
Belgium--Economic policy--Periodicals.
Luxembourg--Economic conditions--Periodicals.
Luxembourg--Economic policy--Periodicals.
Harvard subject headings:
Belgium--Economic conditions--1945---Periodicals.
Luxembourg--Economic conditions--Periodicals.
Princeton subject headings:
Belgium--Economic conditions--1945---Periodicals.
Luxembourg--Economic conditions--Periodicals.
Periodicals.