Forecasting methods for management / Steven C. Wheelwright and Spyros Makridakis. Wheelwright, Steven C. Makridakis, Spyros G., joint author. Economic forecasting. Economic forecasting Methodology. Business forecasting. 658.403 WHF Includes bibliographies and index. New York : Wiley, c1977. c1977. 1977 Text xv, 266 p. : eng Wiley series on systems and controls for financial management