Walsh, Warren Bartlett, author
The University of Michigan Press, 1958
Buku Teks
Rauch, Georg von, author
Frederick A. Preager , 1957
Buku Teks
Rauch, Georg von, author
Frederick A. Praeger, 1962
Buku Teks
Carr, Edward Hallet, author
Macmillan, 1954
Buku Teks
Graham, Loren R., author
Cambridge University Press, 1993
Buku Teks