@book{4508,
	author = {GRUBER, Diann and DUNN, Viviane},
	title = {Writing: elementary /},
	publisher = {Oxford University Press,},
	year = {1990.},
	series = {Oxford Supplementary Skills / series editor Alan Maley},
	address = {Oxford :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=4508}
}