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Books by Mr Robert H Vollmerhausen

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3 books found
Rotary ships and access to space: Non-rocket thrusters
Rotary ships and access to space: Non-rocket thrusters
By: Mr Robert H Vollmerhausen
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Rivertrains: Ships as trains (Unconventional Transportation)
Rivertrains: Ships as trains (Unconventional Transportation)
By: Mr Robert H Vollmerhausen
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Buses, trains and trolleys as components of Unconventional Transportation
Buses, trains and trolleys as components of Unconventional …
By: Mr Robert H Vollmerhausen
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