@book{26569,
	author = {Yule, George,},
	title = {The study of language /},
	publisher = {Cambridge University Press,},
	year = {2010.},
	address = {Cambridge, UK ;},
	edition = {4th ed.},
	note = {Previous ed.: 2005.},
	url = {http://www.loc.gov/catdir/enhancements/fy1101/2010502309-b.html}
}