Não informado. (2016). World Energy Statistics and Balances. Organisation for Economic Co-operation and Development, International Energy Agency.
Chicago-Zitierstil (17. Ausg.)Não informado. World Energy Statistics and Balances. Paris: Organisation for Economic Co-operation and Development, International Energy Agency, 2016.
MLA-Zitierstil (8. Ausg.)Não informado. World Energy Statistics and Balances. Organisation for Economic Co-operation and Development, International Energy Agency, 2016.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.