APA (7th ed.) Zitazioa

United Nations. (1997). On solid ground: Science, technology, and integrated land management. IDRC.

Chicago Style (17th ed.) Zitazioa

United Nations. On Solid Ground: Science, Technology, and Integrated Land Management. Ottawa: IDRC, 1997.

MLA (9th ed.) Zitazioa

United Nations. On Solid Ground: Science, Technology, and Integrated Land Management. IDRC, 1997.

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