@book{11894,
	author = {Schiller, Bradley R.,},
	title = {Essentials of economics /},
	publisher = {McGraw-Hill/Irwin,},
	year = {2009.},
	address = {Boston :},
	edition = {7th ed.},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/enhancements/fy0810/2008000061-d.html}
}