ebrary, Inc. (1988). Space science in the twenty-first century: Imperatives for the decades 1995 to 2015 : report of the study steering group. National Academy Press.
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Chicago-čujuhus (17. p.)
ebrary, Inc. Space Science in the Twenty-first Century: Imperatives for the Decades 1995 to 2015 : Report of the Study Steering Group. Washington, D.C.: National Academy Press, 1988.
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MLA-čujuhus (9. p.)
ebrary, Inc. Space Science in the Twenty-first Century: Imperatives for the Decades 1995 to 2015 : Report of the Study Steering Group. National Academy Press, 1988.
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