000			00467nam a2200145Ia 4500
008			211224s9999 xx 000 0 und d
020			_a9781852333829
082			_a617.89 HER
100			_aHersh, Marion A
245		0	_aAssistive technology for the hearing-impaired, deaf and deafblind
260			_aNew York: _bSpringer, _c2003
300			_axix, 319 p. : ill. ; 25 cm
650			_aCommunication devices for people with disabilities
700			_aJohnson, Michael A
999			_c23319 _d23319