APA-viite (7. p.)
Organisation for economic co-operation and development. (1999). Energy the next fifty years. OECD.
Chicago-viite (17. p.)
Organisation for economic co-operation and development. Energy the Next Fifty Years. France: OECD, 1999.
MLA-viite (9. p.)
Organisation for economic co-operation and development. Energy the Next Fifty Years. OECD, 1999.
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