ebrary, Inc. (1986). Ecological knowledge and environmental problem-solving: Concepts and case studies. National Academy Press.
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Chicago Style (17th ed.) Zitazioa
ebrary, Inc. Ecological Knowledge and Environmental Problem-solving: Concepts and Case Studies. Washington, DC: National Academy Press, 1986.
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MLA (9th ed.) Zitazioa
ebrary, Inc. Ecological Knowledge and Environmental Problem-solving: Concepts and Case Studies. National Academy Press, 1986.
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Kontuz: berrikusi erreferentzia hauek erabili aurretik.