@book{87792,
	author = {Hudson, Richard A.},
	title = {Sociolinguistics /},
	publisher = {Cambridge University Press,},
	year = {1996.},
	address = {Cambridge [England] ;},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/toc/cam023/95044008.html}
}