Irrigation management for diversified cropping /

مواد مشابهة

• Ceylon : report on the results of the mineral survey in 1905-6 /
  بواسطة: Dunstan, Wyndham R.
  منشور في: (1907)
• Ceylon : report on the results of the mineral survey of Ceylon /
  بواسطة: Dunstan, Wyndham R.
  منشور في: (1914)
• Eleven years in Ceylon : comprising sketches of the field sports and natural history of that colony /
  بواسطة: Forbes, Jonathan
  منشور في: (1840)
• Report of the proceedings of a seminar on surveying and land economy in Sri Lanka, held at the Bandaranaike Memorial International Conference Hall, Colombo, on 2-4 October 1974.
  منشور في: (1974)
• Employment and unemployment in Ceylon :
  بواسطة: Richards, Peter (Peter J.)
  منشور في: (1971)