@book{102808,
	author = {Verderber, Rudolph F.  and Verderber, Kathleen S. },
	title = {Comunicación oral efectiva },
	publisher = { : Cengage Learning },
	year = {, 2016},
	address = {México},
	edition = {16a. edición },
	note = {Título original: The challenge of effective speaking}
}