@book{6287,
	author = {Simpson, Alan},
	title = {Sekrety DOS-a 6.0.},
	publisher = {Wydaw. PLJ,},
	year = {1993.},
	address = {Warszawa :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=6287}
}