Biological indicators of copper-induced stress in soil by Du Plessis, Keith R. (Keith Roland)

Subjects: “…Soils -- Copper content…”
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Copper and manganese : studies on calcareous sandy soils in the Gibeon district, S.W.A. by Schroder, H. R. F. D. H.(Hans Richard Ferdinand Dietrich Horlein)

Subjects: “…Soils -- Copper content…”
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Relationship of historical copper mining to the transport and accumulation of trace metals and salts in semi-arid environments : an example from Buffels River, Northern Cape, South... by Dunford, Alexander

Subjects: “…Soils -- Copper content -- South Africa -- Kleinzee…”
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