Doyle,
Robert. "Banned And/or Challenged Books from the Radcliffe Publishing Course Top 100 Novels of the 20th Century." ALA.org. American Library Association, 2010. Web. [1]Arquivado em 19 de janeiro de 2012, no Wayback Machine..
Doyle,
Robert. "Banned And/or Challenged Books from the Radcliffe Publishing Course Top 100 Novels of the 20th Century." ALA.org. American Library Association, 2010. Web. [1]Arquivado em 19 de janeiro de 2012, no Wayback Machine..