@book{56888,
	author = {Walls, Jan and Walls, Yvonne},
	title = {Using Chinese :},
	publisher = {Cambridge University Press,},
	year = {c2009},
	address = {Cambridge, N.Y. :},
	url = {http://www.loc.gov/catdir/enhancements/fy0905/2009000338-t.html}
}