Ascher, William Strategic planning and forecasting: political risk and economic opportunity/ William Ascher, William H. Overholt. - New York: Wiley, 1983 - xxi, 311pages: ill.; 24cm. 'A Wiley-Interscience publication.' Includes index. Bibliography: p. 274-282 ISBN: 047187342X Subjects--Topical Terms: Forecasting.Policy sciences.Planning.