National Research Council (U.S.). Committee on U.S. Geological Survey Water Resources Research & ebrary, Inc. (1997). Watershed research in the U.S. Geological Survey. National Academy 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 U.S. Geological Survey Water Resources Research agus Inc ebrary. Watershed Research in the U.S. Geological Survey. Washington, D.C.: National Academy Press, 1997.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Lua MLA (9ú heag.)
National Research Council (U.S.). Committee on U.S. Geological Survey Water Resources Research agus Inc ebrary. Watershed Research in the U.S. Geological Survey. National Academy Press, 1997.
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.