@book{23777,
	author = {NIGAM, N.C.},
	title = {Introduction to random vibrations /},
	publisher = {MIT Press,},
	year = {1983.},
	series = {The MIT Press Series in Structura Mechanics},
	address = {London :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=23777}
}