References

/3/                    Allen, R.G., Pereira, L.S., Raes, D. and Smith, M., 1998. Guidelines for computing crop water requirements. FAO Irrig and Drainage Paper No. 56, FAO, Rome, Italy.

/4/                    USDA, 1985. National Engineering Handbook, Section 4, Hydrol­ogy. United States Department of Agriculture (USDA), Soil Conser­vation Service, Washington DC, USA

Allen, R.G., Pereira, L.S., Raes, D. and Smith, M., 1998. Guidelines for com­puting crop water requirements. FAO Irrig and Drainage Paper No. 56, FAO, Rome, Italy.

USDA, 1985. National Engineering Handbook, Section 4, Hydrology. United States Department of Agriculture (USDA), Soil Conservation Service, Wash­ington DC, USA