@book{21088,
	author = {HANG, E. J. and ARORA JASBIR, S.},
	title = {Mechanical and structural systems /},
	year = {1979.},
	address = {New York,},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=21088}
}