Whittow, John B., author
Allen Lane, 1984
Buku Referensi
Penguin, 1998
Buku Referensi
Greener, Michael, author
Penguin books, 1994
Buku Referensi
Cohen, J.M. (John Michael), 1903-1989, author
Penguin Books, 1971
Buku Referensi
Cohen, J.M. (John Michael), 1903-1989, author
Allen Lane, 1980
Buku Referensi