@book{20309,
	author = {MALININ, Nikołaj N. and RŹYSKO, Jerzy},
	title = {Mechanika materiałów /},
	year = {1981.},
	address = {Warszawa,},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=20309}
}