APA (7th ed.) Zitazioa

Helmholz, R. H. (2001). The ius commune in England: Four studies. Oxford University Press.

Chicago Style (17th ed.) Zitazioa

Helmholz, R. H. The Ius Commune in England: Four Studies. Oxford ; New York: Oxford University Press, 2001.

MLA (9th ed.) Zitazioa

Helmholz, R. H. The Ius Commune in England: Four Studies. Oxford University Press, 2001.