@book{90784,
	author = {Mccallion, Michael.},
	title = {The voice book  for everyone who wants to make the most of their voice},
	publisher = {Theater arts Books/Routledge},
	year = {[1999]},
	address = {Nueva York (Estados Unidos)},
	url = {http://www.loc.gov/catdir/enhancements/fy0647/98032150-d.html}
}