@book{41311,
	author = {PRESTON, Dennis R.},
	title = {Varieties of American English :},
	publisher = {United States Information Agency,},
	year = {1987.},
	address = {Washington, D.C. :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=41311}
}