Styl cytowania APA

Sands, P. (2012). Principles of international environmental law (3rd ed.). Cambridge University Press.

Styl cytowania Chicago

Sands, Philippe. Principles of International Environmental Law. 3rd ed. Cambridge: Cambridge University Press, 2012.

Styl cytowania MLA

Sands, Philippe. Principles of International Environmental Law. 3rd ed. Cambridge University Press, 2012.