@book{71764,
	author = {Romer, David.},
	title = {Advanced macroeconomics /},
	publisher = {McGraw-Hill,},
	year = {c2001.},
	address = {Boston :},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/description/mh021/00059456.html}
}