Trawick, Buckner B., author
Barnes & Noble, 1955
Buku Teks
edited by Philip Ward
Clarendon Press, 1978
Buku Referensi
Watson, George, author
Macmillan, 1991
Buku Teks
edited with an introduction by J.J. Ras
Martinus Jijhoff, 1979
Buku Teks
Harkins, William E., author
Littlefield, Adams, 1959
Buku Referensi