APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Boyle, Alan E., and David Freestone. International Law and Sustainable Development: Past Achievements and Future Challenges. Oxford [etc.]: University Press, 1999.

MLA (9th ed.) Citation

Boyle, Alan E., and David Freestone. International Law and Sustainable Development: Past Achievements and Future Challenges. University Press, 1999.