ebrary, Inc. (1994). Promoting the national spatial data infrastructure through partnerships. National Academy Press.
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Chicago Style (17th ed.) Zitazioa
ebrary, Inc. Promoting the National Spatial Data Infrastructure Through Partnerships. Washington, D.C.: National Academy Press, 1994.
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MLA (9th ed.) Zitazioa
ebrary, Inc. Promoting the National Spatial Data Infrastructure Through Partnerships. National Academy Press, 1994.
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Kontuz: berrikusi erreferentzia hauek erabili aurretik.