@book{18640,
	author = {Mankiw, N. Gregory, and Scarth, William M.,},
	title = {Macroeconomics /},
	publisher = {Worth Publishers, a Macmillan Higher Education Company,},
	year = {[2014]},
	address = {New York, NY :},
	edition = {Fifth edition},
	url = {http://www.loc.gov/catdir/enhancements/fy1513/2014934351-b.html}
}