Spritchett, V.S.
Reynal & Hitchcock, 1947
Buku Teks
Hall, Richard, 1937-2003
Wellington Lane Press, 1976
Buku Teks
Welch, Joseph N.
Houghton Miffiln, 1956
Buku Teks
Padover, Saul K. (Saul Kussiel)
A Meridian Book, 1963
Buku Teks
Amery, L.S.
Oxford University Press, 1953
Buku Teks