Ascher, W. (1978). Forecasting: An appraisal for. The Johns Hopkins University Pr.
Cita Chicago (17th ed.)Ascher, William. Forecasting: An Appraisal for. Baltimore: The Johns Hopkins University Pr, 1978.
Cita MLA (9th ed.)Ascher, William. Forecasting: An Appraisal for. The Johns Hopkins University Pr, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.