Luhmann,Niklas. (2008). Law as a Social System. Oxford University Press.
Chicago Style aipamenaLuhmann,Niklas. Law as a Social System. Oxford: Oxford University Press, 2008.
MLA aipamenaLuhmann,Niklas. Law as a Social System. Oxford University Press, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.