Carr, E.H. (Edward Hallet), author
Macmillan, 1946
Buku Teks
Rauch, Georg von, author
Frederick A. Preager , 1957
Buku Teks
edited by Donald S. Zagoria
Yale University Press, 1982
Buku Teks
Rauch, Georg von, author
Frederick A. Praeger, 1962
Buku Teks
Wetter, Gustav Andreas, 1911-, author
Frederick A. Praeger, 1962
Buku Teks