Trevelyan, George Macaulay, 1876-1962
Penguin Books, 1986
Buku Teks
Trevelyan, George Macaulay, 1876-1962
Longmans , Green, 1948
Buku Teks
by Lytton Strachey
Chatto and Windus, 1951
Buku Teks
Ward, Adolphus William
Macmillan, 1879
Buku Teks
McGraw-Hill, 1964
Buku Teks