@book{9848,
	author = {OKÓLSKI, Marek and TIMOFIEJUK, Igor},
	title = {Statystyka ekonomiczna :},
	year = {1978.},
	address = {Warszawa,},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=9848}
}