@book{223175,
	author = {National Research Council (U.S.).},
	title = {A research agenda for geographic information science at the United States Geological Survey},
	publisher = {National Academies Press,},
	year = {c2007.},
	address = {Washington, D.C. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10201107}
}