APA aipamena

International energy agency. (2002). World energy outlook 2002. Organisation economic cooperation and development.

Chicago Style aipamena

International energy agency. World Energy Outlook 2002. France: Organisation economic cooperation and development, 2002.

MLA aipamena

International energy agency. World Energy Outlook 2002. Organisation economic cooperation and development, 2002.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.