Brown, L. Neville (Lionel Neville), author
Clarendon Press, 1998
Buku Teks
Levy, Claudine, author
Clarendon Press, 1991
Buku Teks
Kahn-Freund, Otto, 1900-1979, author
Clarendon Press, 1991
Buku Teks
Wade, H. W. R.
Clarendon Press, 1971
Buku Teks
Schwartz, Bernard, author
Little, Brown & Co., 1991
Buku Teks