@book{26500,
	author = {Ang, Alfredo H.S. and Tang, Wilson H.},
	title = {Probability concepts in engineering  },
	publisher = {John Wiley and Sons, },
	year = {c2007},
	address = {Danvers, M.A.  },
	edition = {2a ed.},
	note = {Incluye índice}
}