Smith, William, author
London, John Murray
Buku Referensi
revised by J.R.V. Marchant and Joseph F. Charles
Cassell, 1952
Buku Referensi
edited by P.G.W. Glare
Oxford University Press, 2004
Buku Referensi
Marchant, James Robert Vernam, 1853-1936, editor
New York Funk & Wagnalls [t.th.]
Buku Teks
Follet Publishing , 1961
Buku Referensi