@book{87803,
	author = {Wardhaugh, Ronald, and Fuller, Janet M.,},
	title = {An introduction to sociolinguistics /},
	publisher = {Wiley-Blackwell,},
	year = {2021.},
	series = {Blackwell textbooks in linguistics},
	address = {Hoboken, NJ :},
	edition = {8th edition.}
}