@book{4283,
	author = {Summers, Ian R.},
	title = {Tactile aids for the hearing impaired /},
	publisher = {Whurr Publishers,},
	year = {c1992.},
	series = {Practical aspects of audiology},
	address = {London :},
	url = {http://www.loc.gov/catdir/toc/fy0608/2006404944.html}
}