Sherden, William A. The fortune sellers : the big business of buying and selling predictions / William A. Sherden - New York : John Wiley, c1998 - xi, 308 p. : ill., maps ; 24 cm. Includes bibliographical references (p. 286-297) and index. ISBN: 0471181781 (cloth : acid-free paper) LCCN: 97-015012 Subjects--Topical Terms: Forecasting--History.Forecasting. Subjects--Index Terms: Dự báo Lý thuyết hệ thống LC Class. No.: CB158 / .S456 1998 Dewey Class. No.: 003 / SHE 1998