Columbia subject headings:
Cast-iron--Prices--European Economic Community countries--Periodicals.
Steel industry and trade--European Economic Community countries--Periodicals.
Steel--Prices--European Economic Community countries--Periodicals.
Harvard subject headings:
Princeton subject headings:
Cast-iron--Prices--European Economic Community countries--Periodicals.
Steel industry and trade--European Economic Community countries--Periodicals.
Steel--Prices--European Economic Community countries--Periodicals.