Allen, Frederick (Winter 1994). "The Kazoo Monopoly". American Heritage of Invention & Technology. 9 (3). Archived from the original on 1 April 2016. Retrieved 18 August 2014.
Allen, Frederick (Winter 1994). "The Kazoo Monopoly". American Heritage of Invention & Technology. 9 (3). Archived from the original on 1 April 2016. Retrieved 18 August 2014.