APA
Organisation for Economic Co-operation and Development (Paris), . (1981). Energy balances of OECD countries 1975/1999. Paris: OECD.
Chicago
Organisation for Economic Co-operation and Development (Paris), . 1981. Energy balances of OECD countries 1975/1999. Paris: OECD.
Harvard
Organisation for Economic Co-operation and Development (Paris), . (1981). Energy balances of OECD countries 1975/1999. Paris: OECD.
MLA
Organisation for Economic Co-operation and Development (Paris), . Energy balances of OECD countries 1975/1999. Paris: OECD. 1981.