- The Woodward Governor Company's Hydro Governor Market Share in 1991.
- Stewards of the Wisconsin.
- GENERAL DRAINAGE MAP of WISCONSIN.
- WISCONSIN RIVER OF HISTORY.
- THE RIVERS OF WISCONSIN.
- Stewards of the Wisconsin River.
- WISCONSIN RIVER OF HISTORY, CIRCA 1860'S.
- THE FIRST MAJOR HYDRO PROJECT ON THE THE WISCONSIN RIVER SYSTEM.