APA (7th ed.) Citation

Hall, L. W., & Hall, R. L. (1929). An approach to definite forecasting. University of Pennsylvania Press; H. Milford, Oxford University Press.

Chicago Style (17th ed.) Citation

Hall, Lincoln Withington, and R. Leigh Hall. An Approach to Definite Forecasting. Philadelphia : London: University of Pennsylvania Press; H. Milford, Oxford University Press, 1929.

MLA (9th ed.) Citation

Hall, Lincoln Withington, and R. Leigh Hall. An Approach to Definite Forecasting. University of Pennsylvania Press; H. Milford, Oxford University Press, 1929.