@book{47297,
	author = {SWAN, Michael.},
	title = {Practical English Usage /},
	publisher = {Oxford University Press,},
	year = {1992.},
	address = {Oxford :},
	edition = {[23rd impr.].},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=47297}
}