Die bepaling van toeganklike en reserwe fosfaat in die tabakgronde van die Transvaal

Du Toit, Jacobus Johannes (1973)

Thesis (MScAgric) -- University of Stellenbosch, 1973.

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Please refer to this item in SUNScholar by using the following persistent URL: http://hdl.handle.net/10019.1/50799
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