APA
Sands P., Sands P., Peel J., Fabra Aguilar A. & MacKenzie R. (2018). Principles of international environmental law. New York: Cambridge University Press.
Chicago
Sands Philippe, Sands Philippe, Peel Jacqueline, Fabra Aguilar Adriana and MacKenzie Ruth. 2018. Principles of international environmental law. New York: Cambridge University Press.
Harvard
Sands P., Sands P., Peel J., Fabra Aguilar A. and MacKenzie R. (2018). Principles of international environmental law. New York: Cambridge University Press.
MLA
Sands Philippe, Sands Philippe, Peel Jacqueline, Fabra Aguilar Adriana and MacKenzie Ruth. Principles of international environmental law. New York: Cambridge University Press. 2018.