Cita APA (7a ed.)

Ayton, P., & Wright, G. (1987). Judgmental forecasting. John Wiley & Sons.

Cita Chicago Style (17a ed.)

Ayton, Peter, y George Wright. Judgmental Forecasting. Chichester [etc.]: John Wiley & Sons, 1987.

Cita MLA (9a ed.)

Ayton, Peter, y George Wright. Judgmental Forecasting. John Wiley & Sons, 1987.