@book{33389,
	author = {PIOTROWSKI, Jacek.},
	title = {Przewodnik po sieciach rozległych :},
	publisher = {Helion,},
	year = {cop. 1993.},
	address = {Gliwice :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=33389}
}