APA (7th ed.) Citation

MAKRIDAKIS, S. G. (1990). Forecasting, planning, and strategy for the 21 st century. The Free Press.

Chicago Style (17th ed.) Citation

MAKRIDAKIS, Spyros G. Forecasting, Planning, and Strategy for the 21 St Century. New York: The Free Press, 1990.

MLA (9th ed.) Citation

MAKRIDAKIS, Spyros G. Forecasting, Planning, and Strategy for the 21 St Century. The Free Press, 1990.