@book{17947,
	author = {Frank, Robert H. and Bernanke, Ben.},
	title = {Principles of macro-economics /},
	publisher = {McGraw-Hill/Irwin,},
	year = {c2004.},
	address = {Boston :},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/description/mh031/2002044496.html}
}