@book{27646,
	author = {KETCHUM, Milo S.},
	title = {Structural engineers handbook :},
	publisher = {McGraw-Hill Publishing Company,},
	year = {1924.},
	address = {New York :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=27646}
}