1. Forsling C. L. “A Study of the Herbaceous Plant Cover on Surface Runoff and Erosion in Relation to Grazing on the Waatch Plateau in Utah ” Technical Bulletin 220 USDA Washington DC 1931.
2. Lusby G. C. Reid V. H. and Knipe O. D. “Effects of Grazing on the Hydrology and Biology of the Badger Wash Basin in Western Colorado 1953–1966 ” U.S. Geological Survey Water‐Supply Paper 1532D U.S. Government Printing Office Washington DC 1971 90 pp.
3. Additional Tests on the Effect of Rainfall Intensity on Storm Flow and Peak Flow From Wild-Land Basins
4. Closure to “Empirical Investigation of Curve Number Technique”
5. Hjelmfelt A. T. Jr. Kramer K. A. and Burwell R. E. “Curve Numbers as Random Variables ” Proceedings International Symposium on Rainfall‐Runoff Modeling held at Mississippi State Univ. Mississippi State MS 1981 (Water Resources Publications Littleton CO).