@book{8283,
	author = {Malaysia-UNCRD International Expert Group Meeting on Regional Planning in the 1990s: Using and Managing Geographic Information },
	title = {Planning problems, models, and geographic information systems :},
	publisher = {UNCRD,},
	year = {1991.},
	address = {[Kuala Lumpur} :},
	edition = {1st  ed.}
}