Hollis, D. B. (2012). The Oxford guide to Treaties. Oxford University Press.
Chicago Style aipamenaHollis, Duncan B. The Oxford Guide to Treaties. Oxford: Oxford University Press, 2012.
MLA aipamenaHollis, Duncan B. The Oxford Guide to Treaties. Oxford University Press, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.