Orrego Vicuna, Fransisco, author
Cambridge University Press, 2004
Buku Teks
United Nations , [date of publication not identified]
Buku Teks
Merrills, J.G., author
Cambridge University Press, 1995
Buku Teks
Merrills, J.G., author
Sweet and Maxwell, 1984
Buku Teks
White, N.D., author
Manchester University Press, 1993
Buku Teks