@book{57682,
	author = {Riley, William F. and Sturges, Leroy D.},
	title = {Mechanics of materials /},
	publisher = {John Wiley,},
	year = {c1999},
	address = {New York :},
	edition = {5th ed.},
	url = {http://www.loc.gov/catdir/toc/onix03/98016173.html}
}