@book{35540,
	author = {BIELECKI, Józef and MAKAĆ, Wiesława},
	title = {Statstyka społeczno-ekonomiczna w zadaniach /},
	publisher = {PWN,},
	year = {1975.},
	address = {Warszawa :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=35540}
}