APA aipamena

United Nations Conference on Environment and Development Rio de Janeiro, Brazil. (1992). The earth summit. Regency Press.

Chicago Style aipamena

United Nations Conference on Environment and Development Rio de Janeiro, Brazil. The Earth Summit. London: Regency Press, 1992.

MLA aipamena

United Nations Conference on Environment and Development Rio de Janeiro, Brazil. The Earth Summit. Regency Press, 1992.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.