@book{6285,
	author = {NORTON, Peter and HAHN, Harley},
	title = {Przewodnik po Unixie /},
	publisher = {Wydaw. PLJ,},
	year = {1993.},
	address = {Warszawa :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=6285}
}