Brown, M. (1981). Research Needs for Basic Science of the System of Humanity and Nature: And Appropriate Technology for the Future. National Science Foundation.
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Cita Chicago (17th ed.)
Brown, M.T. Research Needs for Basic Science of the System of Humanity and Nature: And Appropriate Technology for the Future. Florida, EUA: National Science Foundation, 1981.
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Cita MLA (9th ed.)
Brown, M.T. Research Needs for Basic Science of the System of Humanity and Nature: And Appropriate Technology for the Future. National Science Foundation, 1981.
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Atenció: Aquestes cites poden no estar 100% correctes.