@book{86407,
	author = {Beer, Ferdinand P. and Johnston, E. Russell},
	title = {Mechanics of materials /},
	publisher = {McGraw-Hill Higher Education,},
	year = {2015.},
	address = {Boston :},
	edition = {7th ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0702/2004058751-d.html}
}