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.
Citazione stile Chigago Style (17a edizione)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.
Citatione MLA (8a ed.)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.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.