@book{30721,
	author = {Schiller, Bradley R.,},
	title = {Essentials of economics.},
	publisher = {McGraw-Hill/Irwin,},
	year = {c2007.},
	address = {Boston :},
	edition = {6th ed.},
	note = {Includes indexes.},
	url = {http://www.loc.gov/catdir/toc/ecip0612/2006012950.html}
}