Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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