Foden, Giles, 1967- author
Vintage, 1999
Buku Teks
Glenne, Michael
Roy Publishers, [date of publication not identified]
Buku Teks
Fry, Peter Somerset, author
Routledge , 2001
Buku Teks
Burnett, John, author
National Museums of Scotland, 1995
Buku Teks
Webb, Keith, author
Molendinar Press, 1977
Buku Teks