@book{32227,
	author = {Frank, Robert H. and Bernanke, Ben.},
	title = {Principles of macroeconomics /},
	publisher = {McGraw-Hill Irwin,},
	year = {c2009.},
	address = {Boston :},
	edition = {4th ed.},
	note = {Rev. ed. of: Principles of macro-economics / Robert H. Frank, Ben S. Bernanke. 3rd ed. c2007.},
	url = {http://www.loc.gov/catdir/toc/ecip0821/2008028370.html}
}