Space Economics
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- Author: Joel S. Greenberg, Henry R. Hertzfeld
- Language: English
- Year: 1992
- Author: Herman Branover, Yeshajahu Unger
- Language: English
- Year: 1993
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- Year: 1988
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- Language: English
- Year: 1960
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- Language: English
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- Language: English
- Year: 2000
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- Language: English
- Year: 1990
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- Language: English
- Year: 2000
- Author: Victor G. Szebehely
- Language: English
- Year: 1964
- Author: Robert C. Langford, Charles J. Mundo
- Language: English
- Year: 1964