REFERENCES
- Foster , S.S.D. and Milton , V.A. 1974 . The permeability and storage of an unconfined Chalk aquifer. . Hydrol. Sci. Bull. , 19 ( no. 4 ) : 485 – 500 .
- Hadwen , P. 1972 . “ The groundwater resources of the Greater Ndola area. ” . In Groundwater Resources Paper No. 1 of the Hydrogeology Branch, Dept. of Water Affairs, Lusaka.
- Meteorological Office . 1971 . “ Estimated soil moisture deficit and potential evapotranspiration over Great Britain. Explanatory notes. ” . In Meteorological Office Note.
- Penman , H.L. 1949 . The dependence of transpiration on weather and soil conditions. . J. Soil Sci. , 1 : 74 – 89 .
- Tyson , H.N. and Weber , E.H. 1964 . Ground water management for the nation's future—computer simulation of ground water basin. . J. Hydraul. Div., Amer. Soc. Civ. Engrs , 90 : 59 – 77 . No. HY4