Cita APA (7a ed.)

Ascher, W., & Overholt, W. H. (1983). Strategic planning and forecasting: Political risk and economic opportunity. John Wiley & Sons.

Cita Chicago Style (17a ed.)

Ascher, William, y William H. Overholt. Strategic Planning and Forecasting: Political Risk and Economic Opportunity. New York [etc.]: John Wiley & Sons, 1983.

Cita MLA (9a ed.)

Ascher, William, y William H. Overholt. Strategic Planning and Forecasting: Political Risk and Economic Opportunity. John Wiley & Sons, 1983.