Cofnodi Dyfyniadau
Dyfyniad APA
National Research Council (U.S.). Mapping Science Committee & ebrary, Inc. (1993). Toward a coordinated spatial data infrastructure for the nation. National Academy Press.
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Dyfyniad Arddull Chicago
National Research Council (U.S.). Mapping Science Committee and Inc ebrary. Toward a Coordinated Spatial Data Infrastructure for the Nation. Washington, D.C.: National Academy Press, 1993.
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Dyfyniad MLA
National Research Council (U.S.). Mapping Science Committee and Inc ebrary. Toward a Coordinated Spatial Data Infrastructure for the Nation. National Academy Press, 1993.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.