Launius, R D.(2003). Public opinion polls and perceptions of US human spaceflight. Space Policy, 19(3), 163-175. doi:10.1016/s0265-9646(03)00039-0
MLA CitationLaunius, Roger D. "Public Opinion Polls and Perceptions of US Human Spaceflight". Space Policy, 19.3 ( 2003 ): 163-175.
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