References
- American Farmland Trust . Aug 1985 . “ ‘A Survey of Geographic Information Systems for Natura! Resources Decision Making’ ” . AFT Report Aug ,
- Freeland , N. P. Feb 1986 . “A Survey of Microcomputer‐Based Geographic Information Systems’ ” . FAO Report Feb ,
- van Roessel , J. W. Feb 1985 . “ ‘Guidelines to Forestry Information Processing With Particular Reference To Developing Countries’ ” . FAO Report Feb ,