Cita APA (7a ed.)

Boyle, A. E., & Freestone, D. A. C. (1999). International law and sustainable development: Past achievements and future challenges. Oxford University Press.

Cita Chicago Style (17a ed.)

Boyle, Alan E., y D. A. C. Freestone. International Law and Sustainable Development: Past Achievements and Future Challenges. Oxford: Oxford University Press, 1999.

Cita MLA (9a ed.)

Boyle, Alan E., y D. A. C. Freestone. International Law and Sustainable Development: Past Achievements and Future Challenges. Oxford University Press, 1999.