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"closed ecological systems space environment " » "closed ecological systems states environmental " (Expand Search), "closed geological systems space environment " (Expand Search), "closed biological systems space environment " (Expand Search), "closed technological systems space environment " (Expand Search), "closed ecological system space environment " (Expand Search)
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1by Schlick, GregSubjects: “...Closed ecological systems (Space environment)...”
Published 1993
Government Document Book