Covert, L M.(2002). Multinational and ethical issues in manned-space strategy. Space Policy, 18(2), 151-156. doi:10.1016/s0265-9646(02)00006-1
MLA CitationCovert, Liara M. "Multinational and Ethical Issues in Manned-space Strategy". Space Policy, 18.2 ( 2002 ): 151-156.
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