Macdonald, F. (1995). Helen Keller: The deaf and blind woman who conquered her disabilities and devoted her life to campaign for other people. Orient Longman.
Lua i Stíl Chicago (17ú heag.)Macdonald, Fiona. Helen Keller: The Deaf and Blind Woman Who Conquered Her Disabilities and Devoted Her Life to Campaign for Other People. India: Orient Longman, 1995.
Lua MLA (8ú heag.)Macdonald, Fiona. Helen Keller: The Deaf and Blind Woman Who Conquered Her Disabilities and Devoted Her Life to Campaign for Other People. Orient Longman, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.