APA (7th ed.) Zitazioa

The United Nations University. (1993). The Role of the United Nations in the Twenty-First Century. The United Nations University.

Chicago Style (17th ed.) Zitazioa

The United Nations University. The Role of the United Nations in the Twenty-First Century. Japan: The United Nations University, 1993.

MLA (9th ed.) Zitazioa

The United Nations University. The Role of the United Nations in the Twenty-First Century. The United Nations University, 1993.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.