@book{6021,
	author = {Beer, Ferdinand Pierre,  and Dewolf, John T.},
	title = {Mecánica de materiales /},
	publisher = {McGraw Hill, },
	year = {c2007},
	address = {México :},
	edition = {4 ed.},
	note = {Título original: Mechanics of materials},
	url = {https://www.cicy.mx/sitios/sib/doctoelectronico/6425.pdf}
}