John Taylor Gatto (2000-2003) The Underground History of American Education - A Schoolteacher's Intimate Investigation Into The Problem Of Modern Schooling, Chapter Three - Eyeless In Gaza, The Sudbury Valley SchoolArchived 2010-01-02 at the Wayback Machine. Retrieved, December 27, 2009.
The Birth of a New Paradigm for Education by Dan Greenberg in The Sudbury Valley School Experience, 3rd ed. (Sudbury Valley School Press; Framingham, 1992), p. 81ff
John Taylor Gatto (2000-2003) The Underground History of American Education - A Schoolteacher's Intimate Investigation Into The Problem Of Modern Schooling, Chapter Three - Eyeless In Gaza, The Sudbury Valley SchoolArchived 2010-01-02 at the Wayback Machine. Retrieved, December 27, 2009.