Ray Johnson
Source: "Ray Johnson Bibliography." Author Wars, https://authorwars.com/authors/ray-johnson.html".
Titles:
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- Unknown. Tom Swift and His Cosmotron Express
- Unknown. Tom Swift and His Dyna-4 Capsule
- Unknown. Tom Swift and His G-Force Inverter
- Unknown. Tom Swift and the Captive Planetoid
- Unknown. Tom Swift and the Mystery Comet