S.J. Pretorius

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V6SUND-00004

July 1, 1962

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July 1, 1962

25

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July 1, 1962

11

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July 1, 1962

16

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July 1, 1962

17

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July 1, 1962

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July 1, 1962

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V2MOOI-00035

Aug. 1, 1961

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Aug. 1, 1961

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V2MOOI-00034

Aug. 1, 1961

32

Uploaded Source References

Published book, report or thesis

Water quality and abatement of pollution in Natal rivers. Part IV. The rivers of Northern Natal and Zululand.

1969 C.G.M Archibold, O.J. Coetzee, P.H. Kemp, S.J. Pretorius & R.R. Sibbald

Published book, report or thesis

Water quality and abatement of pollution in Natal Rivers. Part II. Survey of the Three Rivers Region.

1967 P.A.J Brand, P.H. Kemp, S.J. Pretorius & H.J. Schoonbee

Published book, report or thesis

Water quality and abatement of pollution in Natal rivers. Part III. The Tugela River and its tributaries.

1967 P.A.J Brand, P.H. Kemp, W.D Oliff & S.J. Pretorius

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