- 3,142,154. Page 13.
- 3,142,154. Page 12
- 3,142,154. Page 11.
- 3,142,154. Page 10.
- 3,142,154. Page 9.
- 3,12,154. Page 8
- 3,142,154. Page 7.
- 3,142,154. Page 6.
- 3,142,154. Page 5.
- 3,142,154. Page 4.
- 3,142,154. Page 3.
- 3,142,154. Page 2.
- Patent 3,142,154, filed Dec. 19, 1960.
- Woodward Gas Turbine history from a 1956 ad in Aviation Week magazine.
- 3,208,218. Page 6.