revised by J.R.V. Marchant and Joseph F. Charles
Cassell, 1952
Buku Referensi
Follet Publishing , 1961
Buku Referensi
Marchant, James Robert Vernam, 1853-1936, editor
New York Funk & Wagnalls [t.th.]
Buku Teks
edited by Eduardo P. Archetti
MacMillan Education, 1987
Buku Teks
Szulc, Tad
Atheneum, 1966
Buku Teks