@book{16370,
	author = {DeMers, Michael N.},
	title = {Fundamentals of geographic information systems /},
	publisher = {Wiley,},
	year = {c2009.},
	address = {Hoboken, NJ :},
	edition = {4th ed.},
	url = {http://catdir.loc.gov/catdir/enhancements/fy0814/2007038332-b.html}
}