@book{870,
	author = {Budynas, Richard G. and Nisbett, J. Keith.},
	title = {Shigley's mechanical engineering design /},
	publisher = {McGraw-Hill,},
	year = {2008.},
	address = {Boston :},
	edition = {8th edition},
	url = {http://www.loc.gov/catdir/toc/ecip0618/2006024364.html}
}