- The Marquette Metal Products Manufacturing History Project.
- The Marquette Metal Products Manufacturing History Project.
- The Nimbus Hydo plant.
- Training course for hydro power operations.
- Training course for hydro power operations. 2.
- Training course for hydro power operations. 3.
- Training course for hydro power operations. 4.
- Training course for hydro power operations. 15.
- Training course for hydro power operations. 16.
- umn.31951p008294272-seq 195
- umn.31951p008294272-seq 196
- umn.31951p008294272-seq 197
- umn.31951p008294272-seq 198
- umn.31951p008294272-seq 199
- umn.31951p008294272-seq 200