APA (7th ed.) Citation

Encel, S., Marstrand, P. K., & PAge, W. (1975). The art of anticipation: Values and methods in forecasting. Martin Robertson.

Chicago Style (17th ed.) Citation

Encel, Solomon, Pauline K. Marstrand, and William PAge. The Art of Anticipation: Values and Methods in Forecasting. London: Martin Robertson, 1975.

MLA (9th ed.) Citation

Encel, Solomon, et al. The Art of Anticipation: Values and Methods in Forecasting. Martin Robertson, 1975.