@book{18696,
	author = {ZAWIELSKI, Fridrich},
	title = {Masa w fizycznym obrazie świata /},
	publisher = {Wiedza Powsszechna,},
	year = {1979.},
	address = {Warszawa :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=18696}
}