1. Application of geostatistics to regional evapotranspiration;Amegee,1985
2. Practical Geostatistics;Clark,1982
3. The meteorologic and agronomic theory incorporated in the USDA ET computation program SCHED;Duke,1985
4. The planning of meteorological station networks;Gandin;WMO Tech. Note,1970
5. Spatial interpolation of Penman evapotranspiration;Harcum;Trans. ASAE,1987