References
- Carroll, D.M. and Bascomb, C.L., 1967: Notes on the soils of Lesotho. Tech. Bull. No. 1, Land Resources Division, Department of Overseas Surveys, Ministry of Overseas Development, London.
- Chakela, Q.K., 1981: Soil erosion and reservoir sedimentation in Lesotho. UNGI Rapport 54, Department of Physical Geography, Uppsala.
- Elwell, H.A., 1980: Design of safe rotational systems. Department of Conservation and Extension, Harare, Zimbabwe.
- Ministry of Water, Energy and Mining 1971: Meteorological data to 1970. Government Printer, Maseru.
- Strömquist, L., Lundén, B., and Chakela, Q., 1986: A soil erosion map of the Lesotho lowlands—a case study using visual interpretation of multitemporal Landsat false colour composites. In: Chakela, Q.K., Lundén, B. and Strömquist, L. (eds.): Sediment sources, sediment residence time and sediment transfer—case studies of soil erosion in the Lesotho lowlands. UNGI Rapport 64, Department of Physical Geography, Uppsala.
- Wentworth, C.K., 1930: A simplified method of determining the average slope of land surfaces. Am. J. Sci., Ser. 5: 184–194.