Columbia subject headings:
Harvard subject headings:
Energy conservation--Finland--Periodicals.
Energy consumption--Finland--Periodicals.
Energy policy--Finland--Periodicals.
Power resources--Finland--Periodicals.
Princeton subject headings:
Energy conservation--Finland--Periodicals.
Energy consumption--Finland--Periodicals.
Energy policy--Finland--Periodicals.
Periodicals.
Power resources--Finland--Periodicals.