1. A survey of geographic information systems for natural resources decision making at the local level;American Farmland Trust,1987
2. Principles of geographic information systems for land resources assessment;Burroughs,1986
3. GIS-123. Electronic spreadsheets as a geographic information system;Godilano,1989
4. A geographical information system and satellite remote sensing to plan for aquaculture development. A FAO-UNEP GRID cooperative study in Costa Rica;Kapetsky,1987
5. Where should trout farms be in Britain?;Meaden;Fish Farmer,1987