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Subjects
- Engineering.4
- Engineers -- Michigan -- Ann Arbor.4
- Laboratories.2
- Rockets.2
- Astronautics -- History.1
- Astronomical observatories.1
- Atomic bomb.1
- Automobile travel -- United States.1
- Camping -- 1911-1920.1
- Canoes.1
- Coal mining.1
- Computers.1
- Early Modern English Dictionary.1
- Electric engineering.1
- Electron tubes.1
- Electronics in rocketry.1
- Engineering -- Research.1
- Engineering -- Study and teaching -- United States.1
- Engineers -- Education -- United States.1
- Explosions.1