Assistive technology for visually impaired and blind peopleMichael A. Johnson, Marion Hersh · First published 2008Open the Tome
Assistive Technology for Visually Impaired and Blind PeopleMichael A. Johnson Marion A. Hersh · First published 2008Open the Tome
Assistive Technology for the Hearing-Impaired, Deaf and DeafblindMarion A. Hersh, C. Andersson, Michael A. Johnson, Campbell, D., A Farquharson · First published 2006Open the Tome
