@book{174318,
	author = {Appleyard, Dennis R. and Field, Alfred J.},
	title = {International economics /},
	publisher = {McGraw-Hill Irwin,},
	year = {c2008.},
	address = {Boston :},
	edition = {6th ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0743/2007026993-t.html}
}