Studies on the development of the genitalia and the genital ducts in insects by Nel, R. I.(Reuben Ivan)

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The deductibility of indirect empowerment measures relating to black economic empowerment (BEE) in terms of the income tax act by Acker, Tim

Other Authors: “…Nel, R.…”
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Die lewensgeskiedenis van die Woestynsprinkaan - Schistocerca Gregaria - Forsk. - met spesiale verwysing na die ontwikkeling van die onvolwasse stadia

Other Authors: “…Nel, R.G.…”
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Bionomics and control of the fruit flies, Ceratitis capitata (Wied.) and Pterandrus rosa (Ksh.), in the Western Cape Province by Myburgh, Andre Cyril

Other Authors: “…Nel, R. I.…”
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