Roberts, S.C.
Longmans, Green, 1965
Buku Teks
Boswell, James, 1740-1795
The modernn Library, 1971
Buku Teks
Boswell, James, 1740-1795
Dell Publishing, 1963
Buku Teks
Clifford, James L. (James Lowry), 1901-1978
University of Minnesota Press, 1970
Buku Referensi
Greene, Donald Johnson
Kennikat Press, 1960
Buku Teks