National Research Council (U.S.). Committee on Twenty-First Century Systems Agriculture & ebrary, Inc. (2010). Toward sustainable agricultural systems in the 21st century. National Academies Press.
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Chicago Style (17th ed.) Zitazioa
National Research Council (U.S.). Committee on Twenty-First Century Systems Agriculture eta Inc ebrary. Toward Sustainable Agricultural Systems in the 21st Century. Washington, D.C.: National Academies Press, 2010.
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MLA (9th ed.) Zitazioa
National Research Council (U.S.). Committee on Twenty-First Century Systems Agriculture eta Inc ebrary. Toward Sustainable Agricultural Systems in the 21st Century. National Academies Press, 2010.
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Kontuz: berrikusi erreferentzia hauek erabili aurretik.