@book{9098,
	author = {Tomlinson, Roger},
	title = {Thinking about GIS: geographic information system planning for managers. /},
	publisher = {ESRI Press,},
	year = {2007.},
	address = {California:},
	edition = {3rd ed.},
	url = {http://www.loc.gov/catdir/toc/ecip0714/2007012863.html}
}