- Digital Reference Unit manual number 824552.
- Digital Speed Matching Synchronizer (DSM) manual number 85100B.
- DIGITAL WOODWARD TECHNOLOGY FOR LOCOMOTIVE CONTROL.
- DIGITAL WOODWARD TECHNOLOGY FOR LOCOMOTIVE CONTROL. 2.
- DIGITAL WOODWARD TECHNOLOGY FOR LOCOMOTIVE CONTROL. THE CLC CONTROL SYSTEM HISTORY PAGE 2.
- DIGITAL WOODWARD TECHNOLOGY FOR LOCOMOTIVE CONTROL. THE CLC CONTROL SYSTEM HISTORY PAGE 3.
- DIGITAL WOODWARD TECHNOLOGY FOR LOCOMOTIVE CONTROL. THE CLC CONTROL SYSTEM HISTORY.
- DIRECTORY OF PUBLIC UTILITIES IN WISCONSIN.
- Do you recognize this man?
- Documenting history of Woodward digital governor control systems.
- Documenting history of Woodward digital governor control systems.
- Documenting history of Woodward electronic governor control systems.
- Documenting history of Woodward Governor Company's control systems.
- Documenting the Art and Science of control history.
- Documenting the evolution of the Woodward governor control system.