New developments in phosphate fertilizer technology : proceedings of the 1976 Technical Conference of ISMA Ltd., the Hague, the Netherlands, 13-16 September, 1976 / edited by L. J. Carpentier.
New developments in phosphate fertilizer technology : proceedings of the 1976 Technical Conference of ISMA Ltd., the Hague, the Netherlands, 13-16 September, 1976 / edited by L. J. Carpentier.