Malherbe, I. De. V.
Soil Fertility / Textual Documents I.De.V. Malherbe. - 5th ed, / - London. Oxford Unilversity Press. 1963. - ix, 304 p.,
Soil Conservation
631.42 / MAL
Soil Fertility / Textual Documents I.De.V. Malherbe. - 5th ed, / - London. Oxford Unilversity Press. 1963. - ix, 304 p.,
Soil Conservation
631.42 / MAL