International energy agency. (2002). World energy outlook 2002. Organisation economic cooperation and development.
Chicago-referens (17:e uppl.)International energy agency. World Energy Outlook 2002. France: Organisation economic cooperation and development, 2002.
MLA-referens (9:e uppl.)International energy agency. World Energy Outlook 2002. Organisation economic cooperation and development, 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.