@book{1519,
	author = {BOTWIN, Mieczysław},
	title = {Mechanika i wytrzymałość materiałów /},
	year = {1980.},
	address = {Warszawa,},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=1519}
}