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References
- ↑ Emile Berliner (November 1913). "Revolving cylinder motors". Aeronautics.
- ↑ "Adams-Farwell Engine" . Retrieved 9 July 2012.
- ↑ The Automotive Manufacturer. 52. January 1911.
{{cite journal}}: Missing or empty|title=(help) - ↑ Aero and hydro America's aviation weekly by Edmond Percy Noël, Aero Club of Illinois: 388. 10 February 1912.
{{cite journal}}: Missing or empty|title=(help) - ↑ John B. Rathbun. Gas, gasoline and oil engines, including complete gas engine glossary. p. 133.
- ↑ Automobile Journal. Vol. 34. p. 68.
- ↑ Aero and Hydro: 198. 14 December 1912.
{{cite journal}}: Missing or empty|title=(help) - ↑ Aeronautics. September 1913.
{{cite journal}}: Missing or empty|title=(help) - ↑ Who's who in the nation's capital. p. 448.
- ↑ Glenn Dale Angle. Airplane Engine Encyclopedia. p. 226.