Oil, Gas, Coal & Electricity -- Quarterly Statistics -- Electricite, charbon, gaz et petrole -- statistiques trimestrielles. Organisation for Economic Cooperation & Development.
Chicago-referens (17:e uppl.)Oil, Gas, Coal & Electricity -- Quarterly Statistics -- Electricite, Charbon, Gaz Et Petrole -- Statistiques Trimestrielles. Organisation for Economic Cooperation & Development.
MLA-referens (9:e uppl.)Oil, Gas, Coal & Electricity -- Quarterly Statistics -- Electricite, Charbon, Gaz Et Petrole -- Statistiques Trimestrielles. Organisation for Economic Cooperation & Development.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.