edited by Matthew Beaumont
Blackwell, 2007
Buku Teks
Neimark, Edith D., author
Harcourt Brace Javanovich, 1987
Buku Teks
Whitehead, Alfred North, 1861-1947, author
The New American Library, 1933
Buku Teks
Gallup, George, author
McGraw-Hill, 1982
Buku Teks
Lucie-Smith, Edward
Thames and Hudson, 1994
Buku Teks