Harvey, Chris
Chancellor Press, 1987
Buku Teks
contributors, Charles Armstrong-Wilson [and 6 others]
Dorling Kindersley, 2015
Buku Referensi
Rob, Golding
The Bath Press, Avon, 1994
Buku Teks
Harvey, Greg
IDG Books, 1994
Buku Teks
Breit, Harvey
The World Pub. Comp., 1956
Buku Teks