Blaufarb, Rafe, author
Oxford University Press, 2016
eBooks
Thompson, J.M., author
Basil Blackwell, 1955.
Buku Teks
Carlyle, Thomas, author
E.P. Dutton, 1955
Buku Teks
Pollard, Sidney, author
Harvard University Press, 1965
Buku Teks
Salvemini, Gaetano
W.W. Norton & Company, 1962
Buku Teks