@book{230,
	author = {Cywiński, Zbigniew and Państwowe Wydawnictwo Naukowe},
	title = {Mechanika budowli w zadaniach.},
	publisher = {Państ. Wydaw. Nauk,},
	year = {1973.},
	address = {Poznań :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=230}
}