@book{30262,
	author = {Roach, Peter},
	title = {English phonetics and phonology :},
	publisher = {Cambridge University Press,},
	year = {2009.},
	address = {Cambridge ;},
	edition = {4th ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0905/2008052020-d.html}
}