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working group on extraterrestrial resources 6th 1968 brooks air force base
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Proceedings of the sixth annual meeting of the Working Group on Extraterrestrial Resources
Working Group on Extraterrestrial Resources (6th 1968 Brooks Air Force Base, Tex.) · Scientific and Technical Information Division, Office of Technology Utilization, National Aeronautics and Space Administration
273 sayfa · 1968
Congresses / Exploration / Space sciences / Space colonies / Space stations