Dyfyniad APA
National Research Council (U.S.), National Academies Press (U.S.), & ebrary, Inc. (2012). International science in the national interest at the U.S. Geological Survey. National Academies Press.
Dyfyniad Arddull Chicago
National Research Council (U.S.), National Academies Press (U.S.), and Inc ebrary. International Science in the National Interest at the U.S. Geological Survey. Washington, D.C.: National Academies Press, 2012.
Dyfyniad MLA
National Research Council (U.S.), et al. International Science in the National Interest at the U.S. Geological Survey. National Academies Press, 2012.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.