Sixth Meeting of the Eastern African Sub-Committee for Soil Correlation and Land Evaluation, Maseru, Lesotho, 9-18 October 1985.

Những quyển sách tương tự

• Fifth Meeting of the Eastern African Sub-Committee for Soil Correlation and Land Evaluation : Wad Medani, Sudan, 5-10 December 1983.
  Được phát hành: (1985)
• Eighth meeting of the East and Southern African Sub-Committee for Soil Correlation and Land Evaluation, Harare, Zimbabwe, 9-13 October, 1989.
  Được phát hành: (1990)
• Soils of the West African savanna the maintenance and improvement of their fertility
  Bằng: Jones, Michael John
  Được phát hành: (1975)
• Management of vertisols in Sub-Saharan Africa : proceedings of a conference held at ILCA, Addis Ababa, Ethiopia;31 August -4 September 1987 /
  Được phát hành: (1988)
• The Soil resources of tropical Africa a symposium of the African Studies Association of the United Kingdom
  Được phát hành: (1968)