Rice, Howard C., author
Princeton University Press, 1976
Buku Referensi
Jefferson, Michael
Cavendish Publishing , 1994
Buku Teks
edited by Edward Dumbauld
Liberal Arts Press, 1955
Buku Teks
Koch, Adrienne, author
Modern Library, 1944
Buku Teks
Hamilton, Paul
Routledge, 1996
Buku Teks