Cole, John, author
BBC Book 1987, 1987
Buku Teks
Reynolds, Charles, author
Martin Robertson, 1973
Buku Teks
edited with introductions by, James Farganis
The McGraw-Hill, 1996
Buku Teks
Krieger, Murray
The Johns Hopkins University Press, 1976
Buku Teks
James Farganis
MacGraw-Hill, 2000
Buku Teks