Cita APA (7a ed.)

Birnie, P. W., & Boyle, A. E. (1992). International law and the environment. Clarendon Press.

Cita Chicago Style (17a ed.)

Birnie, Patricia W., y Alan E. Boyle. International Law and the Environment. Oxford [etc.]: Clarendon Press, 1992.

Cita MLA (9a ed.)

Birnie, Patricia W., y Alan E. Boyle. International Law and the Environment. Clarendon Press, 1992.