- Cal Covert Fifty-Year Service Anniversary (June 1942 through June 1992).
- 2
- PRIME TIMES JUNE 1992.
- A Woodward Prime Mover Control Prime Times History Project.
- 12
- 11
- 3
- 2
- August 1986 Prime Mover Control Supplement Plant News.
- A Woodward Prime Mover Control Plant News History Project.
- 5
- 6
- 4
- November 1958 Plant News.
- A Woodward Prime Mover Control Plant News History Project.