APA

Library of Congress, . (2018). Factsheet: The National Library Service for the Blind and Physically Handicapped. [Washington, D.C.]: National Library Service for the Blind and Physically Handicapped, Library of Congress.

Chicago

Library of Congress, . 2018. Factsheet: The National Library Service for the Blind and Physically Handicapped. [Washington, D.C.]: National Library Service for the Blind and Physically Handicapped, Library of Congress.

Harvard

Library of Congress, . (2018). Factsheet: The National Library Service for the Blind and Physically Handicapped. [Washington, D.C.]: National Library Service for the Blind and Physically Handicapped, Library of Congress.

MLA

Library of Congress, . Factsheet: The National Library Service for the Blind and Physically Handicapped. [Washington, D.C.]: National Library Service for the Blind and Physically Handicapped, Library of Congress. 2018.