Walker,David M. (1980). the Oxford companion to law. Clarendon Press.
Chicago Style aipamenaWalker,David M. The Oxford Companion to Law. Oxford: Clarendon Press, 1980.
MLA aipamenaWalker,David M. The Oxford Companion to Law. Clarendon Press, 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.