@book{55863,
	author = {Jelen, Bill. and Mirecki, Przemysław.},
	title = {Microsoft Excel 2007 PL :},
	publisher = {Wydawnictwo Helion,},
	year = {2008.},
	series = {Rozwiązania w Biznesie},
	address = {Gliwice :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=55863}
}