@book{7552,
	author = {Krugman, Paul R. and Wells, Robin,},
	title = {Macroeconomics /},
	publisher = {Worth Publishers,},
	year = {[2015]},
	address = {New York, NY :},
	edition = {Fourth edition.},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/enhancements/fy1508/2015930274-t.html}
}