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 -- Namibia -- Gibeon Region…”
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Chemical characterisation of the soils of East Central Namibia by Coetzee, Marina Elda

Subjects: “…Soils -- Namibia, East-Central…”
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