Emma Beare, editor
Bounty Books, 2013
Buku Referensi
selected by Henry Steele Commager
American Museum of Natural History, 1964
Buku Teks
Mintz, Sidney Wilfred
Beacon Press, 1992.
Buku Teks
Lonely Planet, 1985
Buku Teks
Raymer, Robert, author
Editions Didier Millet, 2011
Buku Referensi