Williamson, R A.(1985). International cooperation and competition in civilian space activities. Space Policy, 1(4), 409-414. doi:10.1016/0265-9646(85)90007-4
MLA CitationWilliamson, Ray A. "International Cooperation and Competition in Civilian Space Activities". Space Policy, 1.4 ( 1985 ): 409-414.
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