APA
Organisation for Economic Co-Operation and Development, International Energy Agency, . (1999). Energy balances of non-OECD countries, 1996-1997. Paris: OECD.
Chicago
Organisation for Economic Co-Operation and Development, International Energy Agency, . 1999. Energy balances of non-OECD countries, 1996-1997. Paris: OECD.
Harvard
Organisation for Economic Co-Operation and Development, International Energy Agency, . (1999). Energy balances of non-OECD countries, 1996-1997. Paris: OECD.
MLA
Organisation for Economic Co-Operation and Development, International Energy Agency, . Energy balances of non-OECD countries, 1996-1997. Paris: OECD. 1999.