Clarke, M.L., author
Harvard University Press, 1960
Buku Teks
edited and with an introduction by Whitney J. Oates
Random House, 1940
Buku Teks
Zeller, Eduard, 1814-1908, author
Meridian Books, 1960
Buku Teks
Kirk, G.S. (Geoffrey Stephen), 1921-, author
Cambridge University Press, 1957
Buku Teks
Blackson, Thomas A., author
Wiley-Blackwell, 2011
Buku Teks