Barraclough, Geoffrey, 1908-1984
Basil Blackwell, 1957
Buku Teks
Gottschalk, Louis, author
Alfred A. Knoff, 1969
Buku Teks
edited by Fritz Stern
Meredian Books, 1959
Buku Teks
edited by Fritz Stern
Merridian Book, 1972
Buku Teks
Butterfield, Herbert, author
Cambridge University Press, 1969
Buku Teks