TY  - BOOK
AU  - Norman W  Hudson
TI  - Soil and water conservation in semi-arid areas- FAO soils bulletin
U1  - 631.4 
PB  - FAO
KW  - Problems of agriculture in the semi-arid regions, pressures on semi-arid ecosystems, Assessing possibilities for improving agriculture, soil conservation, water conservation, water harvesting and use, Applications of water conservations
N1  - 2A2
ER  -