Snow, Edgar, author
Random House , 1962.
Buku Teks
Snow, Edgar, author
Vintage Books, 1971.
Buku Teks
Snow, Edgar, author
The World Publishing, 1944
Buku Teks
Snow, Edgar, author
Random House, 1941
Buku Teks
Wenley, A.G., author
Smithsonian Institution, 1944
Buku Teks