Marsden, Reginald Godfrey
Stevens, 1961
Buku Teks
Bowett, D.W. (Derek William)
Manchester University Press, 1967
Buku Teks
Churchill, R.R.
Manchester University Press, 1992
Buku Teks
edited by Myron H. Nordquist, John Norton Moore
Martinus Nijhoff Publishers, 1995
Buku Teks
edited by Lewis M. Alexander
University of Rhode Island, 1968
Buku Teks