Lua APA (7ú heag.)
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.
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.
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.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.