@book{31152,
	author = {Taylor, John B. and Weerapana, Akila.},
	title = {Principles of economics /},
	publisher = {South-Western Cengage Learning,},
	year = {c2012.},
	address = {Australia ;},
	edition = {7th ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy1303/2012418025-b.html}
}