National Research Council (U.S.). Committee on Research Priorities in Geography at the U.S. Geological Survey & ebrary, Inc. (2002). Research opportunities in geography at the U.S. Geological Survey. National Academies Press.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Lua i Stíl Chicago (17ú heag.)
National Research Council (U.S.). Committee on Research Priorities in Geography at the U.S. Geological Survey agus Inc ebrary. Research Opportunities in Geography at the U.S. Geological Survey. Washington, D.C.: National Academies Press, 2002.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Lua MLA (9ú heag.)
National Research Council (U.S.). Committee on Research Priorities in Geography at the U.S. Geological Survey agus Inc ebrary. Research Opportunities in Geography at the U.S. Geological Survey. National Academies Press, 2002.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.