APA (7th ed.) Zitazioa

Birnie, P. W., & Boyle, A. E. (2002). International law and the environment (2a. ed.). Oxford University.

Chicago Style (17th ed.) Zitazioa

Birnie, Patricia W., eta Alan E. Boyle. International Law and the Environment. 2a. ed. Nueva York: Oxford University, 2002.

MLA (9th ed.) Zitazioa

Birnie, Patricia W., eta Alan E. Boyle. International Law and the Environment. 2a. ed. Oxford University, 2002.