@book{53931,
	author = {Date, C. J. and Pętlicki, Marek},
	title = {Relacyjne bazy danych dla praktyków /},
	publisher = {Wydawnictwo Helion,},
	year = {2006.},
	address = {Gliwice :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=53931}
}