Kirgis, Frederic L., author
West Publishing, 1993
Buku Teks
edited by Evan Luard
Praeger, 1966
Buku Teks
Peaslee, Amos J., author
Martinus Nijhoff, 1956
Buku Teks
Hay, Peter
University of Illinois Press, 1966
Buku Teks
edited by Jan Klabbers, Asa Wallendahl
Edward Elgar, 2011
Buku Teks