Ondersoekinge oor die koolstof- en stikstof-vereistes van, en die invloed van organiese reste op Helminthosporium sativum P.K. en B.

Baard, S. W.(Schalk Willem) (1964)

Proefskrif (M. Sc. Agric.) -- Universiteit van Stellenbosch, 1964.

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Thesis

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