Boudreaux, Donald J. Information and Prices. The Concise Encyclopedia of Economics. Library of Economics and Liberty (econlib.org). [18 June 2017]. (原始内容存档于2017-06-19).
Boudreaux, Donald J. Information and Prices. The Concise Encyclopedia of Economics. Library of Economics and Liberty (econlib.org). [18 June 2017]. (原始内容存档于2017-06-19).