Cita APA (7a ed.)

Armstrong, J. S. (1978). Long-range forecasting: From crystal ball to computer. Wiley.

Cita Chicago Style (17a ed.)

Armstrong, J. Scott. Long-range Forecasting: From Crystal Ball to Computer. New York, NY [u.a.]: Wiley, 1978.

Cita MLA (8a ed.)

Armstrong, J. Scott. Long-range Forecasting: From Crystal Ball to Computer. Wiley, 1978.