Verwoerd, W. J. (1957). The mineralogy and genesis of the lead-zinc-vanadium deposit of Abenab West in the Otavi Mountains, South West Africa. [University of Stellenbosch].
Style de citation Chicago (17e éd.)Verwoerd, W. J. The Mineralogy and Genesis of the Lead-zinc-vanadium Deposit of Abenab West in the Otavi Mountains, South West Africa. Stellenbosch: [University of Stellenbosch], 1957.
Style de citation MLA (8e éd.)Verwoerd, W. J. The Mineralogy and Genesis of the Lead-zinc-vanadium Deposit of Abenab West in the Otavi Mountains, South West Africa. [University of Stellenbosch], 1957.
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