APA aipamena

Sands, P., Peel, J., Fabra Aguilar, A., & MacKenzie, R. (2018). Principles of international environmental law (Fourth edition.). Cambridge University Press.

Chicago Style aipamena

Sands, Philippe, Jacqueline Peel, Adriana Fabra Aguilar, and Ruth MacKenzie. Principles of International Environmental Law. Fourth edition. Cambridge, United Kingdom ; New York, NY, USA: Cambridge University Press, 2018.

MLA aipamena

Sands, Philippe, et al. Principles of International Environmental Law. Fourth edition. Cambridge University Press, 2018.