Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

Armstrong, Jon Scott. Long-range Forecasting: From Crystal Ball to Computer. New York: Wiley-Interscience Pub, 1978.

Cita MLA (9th ed.)

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