Dyfyniad APA
National Research Council (U.S.). Committee on Planetary and Lunar Exploration & ebrary, Inc. (1999). A science strategy for the exploration of Europa. National Academy Press.
Dyfyniad Arddull Chicago
National Research Council (U.S.). Committee on Planetary and Lunar Exploration and Inc ebrary. A Science Strategy for the Exploration of Europa. Washington, D.C.: National Academy Press, 1999.
Dyfyniad MLA
National Research Council (U.S.). Committee on Planetary and Lunar Exploration and Inc ebrary. A Science Strategy for the Exploration of Europa. National Academy Press, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.