Template:Keller 1991
Peter Keller, The Cathode-Ray Tube: Technology, History, and Applications, {{{1}}}. Palisades Press, 1991. ISBN 0963155903, 9780963155900
Peter Keller, The Cathode-Ray Tube: Technology, History, and Applications, {{{1}}}. Palisades Press, 1991. ISBN 0963155903, 9780963155900