@book{230833,
	author = {Taylor, John B. and Weerapana, Akila.},
	title = {Principles of economics},
	publisher = {South-Western Cengage Learning},
	year = {c2012.},
	address = {Australia},
	edition = {Seventh edition},
	url = {http://www.loc.gov/catdir/enhancements/fy1303/2012418025-b.html}
}