@book{22621,
	author = {CZERWIŃSKI, Zbigniew},
	title = {Matematyka na usługach ekonomii /},
	year = {1984.},
	address = {Warszawa,},
	edition = {Wyd.6.},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=22621}
}