APA aipamena

United, N. (2004). World investment report 2004: The shift towards services.

Chicago Style aipamena

United, Nations. World Investment Report 2004: The Shift Towards Services. New York, United Nations, 2004.

MLA aipamena

United, Nations. World Investment Report 2004: The Shift Towards Services. 2004.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.