Interviewed by Frank Parker Stockbridge, "The Man Who Made Radio Talk" http://books.google.com/books?id=bCoDAAAAMBAJ&pg=PA32, Popular Science Monthly, May 1929
Lee De Forest: Frases en inglés
"Dawn of the Electronic Age" http://blog.modernmechanix.com/2006/03/20/dawn-of-the-electronic-age/, Popular Mechanics, January 1952
"Dawn of the Electronic Age" http://blog.modernmechanix.com/2006/03/20/dawn-of-the-electronic-age/, Popular Mechanics, January 1952
Father of Radio: The Autobiography of Lee De Forest (1950), p. 4
1926, as quoted in [Gawlinski, Mark, Interactive television production, 2003, Focal Press, 0-240-51679-6, 89]
De Forest Says Space Travel Is Impossible https://news.google.com/newspapers?id=KXhfAAAAIBAJ&sjid=my8MAAAAIBAJ&pg=3288,6595098&dq=all-that-constitutes-a-wild-dream-worthy-of-jules-verne&hl=en, Lewiston Morning Tribune via Associated Press, February 25, 1957
"Dawn of the Electronic Age" http://blog.modernmechanix.com/2006/03/20/dawn-of-the-electronic-age/, Popular Mechanics, January 1952