World braille usage

Other Authors: Perkins School for the Blind., International Council on English Braille., Library of Congress. National Library Service for the Blind and Physically Handicapped.
Format: eBook
Language: English
Published: Watertown, MA : Toronto, Ontario : Washington, D.C. : Perkins School for the Blind ; International Council on English Braille ; National Library Service for the Blind and Physically Handicapped, Library of Congress, 2013.
Physical Description: 1 online resource (xvi, 210 pages)
Edition: Third edition.
Subjects:
Online Access: http://purl.fdlp.gov/GPO/gpo38772
http://www.perkins.org/assets/downloads/worldbrailleusage/world-braille-usage-third-edition.pdf