Morton, A.L., author
Victor Gollancz, 1938
Buku Teks
edited by Albert C. Baugh
Appleton-Century-Crofts, 1948.
Buku Teks
Hall, Walter Phelps, author
Ginn and Company, 1953
Buku Teks
Babington, Anthony
Routledge , 1991
Buku Teks
Carrington, C. E.
At The University Press, 1938
Buku Teks