Gillispie, Charles Coulston, author
Princeton University Press, 1960
Buku Teks
Singer, Charles, author
Clarendon Press, 1962
Buku Teks
Stuart, Alan, author
Charles Griffin, 1976
Buku Teks
Mackenzie, W.J.M
Penguin books, 1978
Buku Teks
Mackenzie, W.J.M
Penguin books, 1978
Buku Teks