1. Forecasting: An Appraisal for Policy-Makers and Planners, Baltimore, MD: Johns Hopkins University Press, 1978.
2. and , Time Series Analysis: Forecasting and Control, Time Series Analysis: Forecasting and Control: Holden-Day, 1976.
3. Macroeconomics, Macroeconomics: Harper & Row, 1989.
4. Time Series Analysis, Boston, MA: Duxbury Press, 1986.
5. Likelihood Ratio Statistics for Autoregressive Time Series with a Unit Root