Sherden, W. A. (1998). The fortune sellers: The big business of buying and selling predictions. John Wiley.
Lua i Stíl Chicago (17ú heag.)Sherden, William A. The Fortune Sellers: The Big Business of Buying and Selling Predictions. New York: John Wiley, 1998.
Lua MLA (8ú heag.)Sherden, William A. The Fortune Sellers: The Big Business of Buying and Selling Predictions. John Wiley, 1998.
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