Soil and soil conservation in Sri Lanka
Thenabadu, Mervyn W.
Soil and soil conservation in Sri Lanka - Colombo: Natural Resources,Energy and Science Authority, 1988. - 112p.; 21 cm - Science Education Series 28 .
Agriculture
631.45 / THE
Soil and soil conservation in Sri Lanka - Colombo: Natural Resources,Energy and Science Authority, 1988. - 112p.; 21 cm - Science Education Series 28 .
Agriculture
631.45 / THE