a b c Michael Quinion: World Wide Words: Gadget (accessed February 6, 2008) Also in: Michael Quinion: Port Out, Starboard Home: The Fascinating Stories We Tell About the Words We Use. ISBN 978-0-14-101223-0
Notes and Queries: 1918 s12-IV: 281-282 (accessed June 2, 2010)
Above the Battle, p.191 at Google Book Search
Reyner Banham. "The Great Gizmo." Design by Choice. Ed. Penny Sparke. Rizzoli, 1981. p. 110. Originally appeared in Industrial Design 12 (September 1965): 58-59.