@book{2690,
	author = {Mankiw, N. Gregory.},
	title = {Principles of microeconomics /},
	publisher = {Thomson South-Western,},
	year = {c2007.},
	address = {Mason, OH :},
	edition = {4th ed.},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/enhancements/fy1104/2005938055-b.html}
}