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• Middleton, B.J. and Pitman, W.V., 1984. Surface water resources of South Africa:
the 1981 appraisal, Civil Engineer in South Africa, VOL 26(7), p. 323 - 332. (And
. discussion, VOL 27(8), 1985, p. 449 - 452).
• Midgley, D.C. and Pitman, W.V., 1969. Surface water resources of South Africa,
HRU Report No. 2/69, Hydrological Research Unit, University of the Witwatersrand,
Johannesburg, 128 p. IThis report was subsequently updated by the six volume
series first published in 1981. and referred to in the preceding discussion).
• Midgley, D.C., Pitman, W.V. and Middleton, B.J., 1983. An addendum to "Surface
Water Resources of South Africa" (1981), Water Research Commission, Pretoria,
various pages.
• Midgley, D.C., Pitman, W.V. and Middleton, B.J., 1983. A guide to "Surface
Water Resources of South Africa", (1981) and its Addendum (1983), Water
Research Commission, Pretoria, various pages. (The guide and the addendum
provide further useful information inter alia on legal aspects of water, warnings to
users, other examples of problem solving, flow duration curves and evaporation
data, as well as corrections).
University hydrological data and reports
• Barnes, P.M. and Hope, A.S., 1980. Processed hydrological records from selected
catchments W1 M15, W1 M16 and W1 M17, November 1976 to February 1980,
Zululand Hydrology Project Report No. 1/80, Hydrological Research Unit, University
of Zululand, KwaDlangezwa, 105 p.
• Bodenstein, B. and Kelbe, B., 1991. Processed runoff data: Ntuze catchment weirs
W1 H016 and W1H031, 1990, HRU Report No. 1/91, Hydrological Research Unit,
University of Zululand, KwaDlangezwa, 17 p. + app.
• Hope, A.S. and Mulder, G.J., 1979. Hydrological investigations of small
catchments in the Natal coastal belt and the role of physiography and land-use in
the rainfall-runoff process, Publication Series B2, University of Zululand,