- WARNING
- WOODWARD PSG GOVERNOR MANUAL 37013C
- Woodward PSG governor bulletin 37002.
- An early application of the Woodward PSG governor, circa 1944.
- A Woodward PSG governor in the oldwoodward.com collection, circa 2008.
- WOODWARD HYDRAULIC GOVERNOR HISTORY.
- WOODWARD HYDRAULIC GOVERNOR HISTORY.
- WOODWARD HYDRAULIC GOVERNORS ADVERTISEMENT.
- Instructions for Woodward Hydraulic Governors, circa 1942.
- A Woodward Company history painting of their governor applications.