@book{9026,
	author = {O'Sullivan, Arthur.},
	title = {Urban economics /},
	publisher = {McGraw-Hill/Irwin,},
	year = {c2009.},
	address = {Boston :},
	edition = {7th ed.},
	url = {http://www.loc.gov/catdir/toc/ecip0819/2008023372.html}
}