TY - BOOK AU - Hersh,Marion A. AU - Johnson,Michael A. AU - Keating,David ED - ProQuest (Firm) TI - Assistive technology for visually impaired and blind people AV - HV1701 .A87 2008 U1 - 362.4183 22 PY - 2008/// CY - London PB - Springer KW - Blind, Apparatus for the KW - Technological innovations KW - People with visual disabilities KW - Orientation and mobility KW - Means of communication KW - Communication devices for people with disabilities KW - Electronic books N1 - Includes bibliographical references and index; Electronic reproduction. Ann Arbor, MI : ProQuest, 2015. Available via World Wide Web. Access may be limited to ProQuest affiliated libraries UR - http://ebookcentral.proquest.com/lib/aitie/detail.action?docID=993392 ER -