National Research Council (U.S.). Committee on River Science at the U.S. Geological Survey & ebrary, Inc. (2007). River science at the U.S. Geological Survey. National Academies Press.
Dyfyniad Arddull ChicagoNational Research Council (U.S.). Committee on River Science at the U.S. Geological Survey and Inc ebrary. River Science at the U.S. Geological Survey. Washington, D.C.: National Academies Press, 2007.
Dyfyniad MLANational Research Council (U.S.). Committee on River Science at the U.S. Geological Survey and Inc ebrary. River Science at the U.S. Geological Survey. National Academies Press, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.