Columbia subject headings:
Harvard subject headings:
Steel industry and trade--Energy conservation--Developing countries.
Steel industry and trade--Energy conservation.
Steel industry and trade--Energy consumption--Developing countries.
Steel industry and trade--Energy consumption.
Princeton subject headings:
Steel industry and trade--Developing countries--Energy conservation.
Steel industry and trade--Developing countries--Energy consumption.
Steel industry and trade--Energy conservation.
Steel industry and trade--Energy consumption.