@book{42081,
	author = {Mankiw, N Gregory},
	title = {Essentials of economics /},
	publisher = {South-Western Cengage Learning,},
	year = {c2012.},
	address = {Australia ;},
	edition = {6th ed.},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/enhancements/fy1212/2010941873-d.html}
}