Não informado. (2016). World Energy Statistics and Balances. Organisation for Economic Co-operation and Development, International Energy Agency.
Lua i Stíl Chicago (17ú heag.)Não informado. World Energy Statistics and Balances. Paris: Organisation for Economic Co-operation and Development, International Energy Agency, 2016.
Lua MLA (8ú heag.)Não informado. World Energy Statistics and Balances. Organisation for Economic Co-operation and Development, International Energy Agency, 2016.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.