The mineralogy and genesis of the lead-zinc-vanadium deposit of Abenab West in the Otavi mountains, South West Africa by Verwoerd, W. J

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South African carbonatites and their probable mode of origin by Verwoerd, W. J

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The geology and petrology of the Marble Delta by Otto, J. D. T.

Other Authors: “…Verwoerd, W. J.…”
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The Darling granite batholith by Schoch, A. E.(Aylva Ernest)

Other Authors: “…Verwoerd, W. J.…”
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Styl en intensiteit van vervorming in die Kaap- en Karoo-opeenvolging vanaf Meiringspoort tot by Beaufort-Wes langs 22 1/2 [grade] oosterlengte by Coetzee, Dirk Stephanus

Other Authors: “…Verwoerd, W. J.…”
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Piroklastiese afsettings van perm-ouderdom in die Hoof-Karookom met spesiale verwysing na die Collingham Formasie, Ecca Groep by Viljoen, J. H. A

Other Authors: “…Verwoerd, W. J.…”
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Carbonate-bearing eruptives between the Great Karas Mountains and the Bremen igneous complex, South West Africa by Schreuder, C. P.

Other Authors: “…Verwoerd, W. J.…”
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