1. Agric. J. Union South Africa 1913–1914 ‘Is South Africa drying up?’ Vol. 6, 1913, pp. 693–694, pp. 1027–1029; Vol. 7, 1914, pp. 113–114, pp. 150–154, pp. 259–261, pp. 423–424, pp. 523–538, pp. 732–739, pp. 894–898; Vol. 8, 1914, pp. 107–113, pp. 262–265.
2. and 1970 Time series analysis forecasting and control, Holden Day, San Francisco, 553 pp.
3. Rainfall Trend Patterns in South Africa
4. PERIODICITY IN RAINFALL